ࡱ>       q .bjbjt+t+  AA( ]8(\X((###((((((($D)8+C(###^###C(%$C%$%$%$#@Z(#(%$%$((4'#d( Operational Evaluation of a Knowledge-Based Sea Ice Classification System Denise Gineris1, Cheryl Bertoia2, Mary Ruth Keller2, LeenKiat Soh3, and Costas Tsatsoulis3 1Veridian ERIM International Inc. Naval Research Laboratory Code 7330 Building 1009, Room A115 Stennis Space Center, MS 39529 Email: gineris@nrlssc.navy.mil 2U.S. National Ice Center 4251 Suitland Road, FOB 4 Washington, D.C., U.S.A. 20395-5300 Email: {bertoiac, kellerm}@natice.noaa.gov 3Department of Electrical Engineering and Computer Science 2291 Irving Hill Road, Nichols Hall The University of Kansas Lawrence, KS 66045 Email: {lksoh, tsatsoul}@eecs.ukans.edu ABSTRACT ARKTOS (Advanced Reasoning Using Knowledge for Typing of Sea Ice) is a fully automated intelligent sea ice classification system. ARKTOS is in use at the U.S. National Ice Center (NIC) for daily operations related to the NICS task of mapping the ice covered oceans. ARKTOS incorporates image processing, input from ancillary data, and artificial intelligence (AI) to analyze and classify RADARSAT Synthetic Aperture Radar (SAR) imagery. The NIC and Naval Research Laboratory (NRL/ERIM) have been testing and evaluating ARKTOS through the freeze-up, winter, melt-out and summer seasons of the Beaufort Sea. In this paper we outline the development and evolution of ARKTOS, evaluate current output, and discuss future implementation. Introduction The U.S. National Ice Center (NIC), under sponsorship of the U.S. Navy, U.S. Coast Guard, and National Oceanic and Atmospheric Administration (NOAA), is tasked with mapping the ice covered oceans of the world using both remotely sensed and in situ observations. Synthetic Aperture Radar (SAR) data became a major input to the program after the November, 1995 launch of the Canadian RADARSAT Satellite [1]. The NIC acquires RADARSAT data primarily from the Alaska SAR Facility (ASF) at Fairbanks, but also acquires a limited amount of imagery under contract from Tromso, Norway, and West Freugh, Scotland, and from the Gatineau station mask through a bilateral data exchange agreement with the Canadian Ice Service (CIS). Almost 1 GB of RADARSAT data per day is currently received at the NIC. In order to make efficient use of this large volume of data, the NIC has been actively involved in the development of algorithms that can assist in the analysis of sea ice using SAR. The University of Kansas (KU) began to study the use of expert systems in sea ice classification from SAR under a NASA graduate student fellowship in 1990. The work continued in 1992 and 1993 under a NASA Mission to Planet Earth grant, and produced various techniques to measure and identify sea ice features in SAR imagery [2,3]. Of particular interest to the NIC was a system that classified winter sea ice into three major classes using dynamic thresholding and expert rule-based systems. It is this system that has evolved into the versions of ARKTOS that are currently in operational use at NIC and in research use at NRL. System Description ARKTOS (Advanced Reasoning using Knowledge for Typing Of Sea Ice) is a sea ice classification system that incorporates image processing, ancillary data, and knowledge based rules to interpret RADARSAT SAR images. Figure 1 displays a flow chart of the ARKTOS system as it is currently implemented. ARKTOS first segments the input image using a Watershed region-growing technique based on image gradients into an initial set of regions. These initial regions are then merged based on area, average intensity, and strength of common boundaries [4] into contiguous regions call features. For each feature, ARKTOS computes a series of measurable descriptors, or attributes, such as area, average intensity, texture, and measures of shape (roundness, jaggedness, etc.). Facts regarding each feature are generated by quantizing the calculated attribute values into symbols based on a thresholding of the descriptor values [5]. For example, if a feature has an average intensity less than 25.0, then intensity (feature) = black. During the classification phase, the Dempster-Shafer rule-base engine reads the facts generated for each feature and matches the facts to rules in the rule-base by looking for satisfied conditions. After matched rules are fired, the engine combines the evidence and gives the belief and plausibility values for a feature to be in one of five ice surface classifications: multi-year ice, first-year ice, fast ice, open water/new ice, and unknown. ARKTOS then assigns the feature to the ice surface classification with the highest product of the plausibility and belief values. The rule-base was originally generated from a series of knowledge engineering experiments, in which sea ice geophysicists from the NIC and the Canadian Ice Service (CIS) were interviewed and asked, in a variety of ways, to describe sea ice [6]. The collective experience of these geophysicists was then transcribed and converted into the measurable descriptors used in the analysis of each feature. The rule-base has been fine tuned over the course of the system evaluation to correct misinterpretations introduced by the knowledge engineering process. Ancillary data, such as the NASA Team ice concentration from the Special Sensor Microwave/Imager (SSM/I) and a land mask, were also added to the system, and additional rules were developed to exploit these new information sources. Current Status One of the distinguishing features of the ARKTOS classification system is that it provides the user with a variety of graphical tools that allow for easy fine-tuning of its rule base. This feature gives the user great flexibility in the application of ARKTOS to varying ice regions and seasons. Initially, the rule base of ARKTOS was tuned to operate in the Beaufort Sea in the winter season. Initial quantitative results have indicated that the system performs well in areas of first year and multiyear ice during this time. ARKTOS classifications were compared to manual classifications performed by ice analysts at NIC for six winter Beaufort RADARSAT images. The average percent error between the ARKTOS classifications and the manual classifications was 12%. More recently, ancillary data, in the form of NASA Team algorithm ice concentration fields from the Special Sensor Microwave/Imager (SSM/I) and a land mask, were added to the system. The addition of the SSM/I input, and the development and application of appropriate SSM/I rules in the rule base, has greatly enhanced the ability of ARKTOS to correctly classify areas of water with unusually high backscatter return. An example of this improvement is presented in Figure 2. The addition of a land mask to the system, and of appropriate coast oriented rules, has also improved ARKTOS segmentation and classification of ice features adjacent to landmasses. In preparation for the upcoming Arctic summer season, work has just been completed on the fine-tuning of a rule base for summer in the Beaufort Sea. The summer season represents a unique set of classification difficulties, due to intermittent backscatter inversion and the loss of floe boundary definition in the ice pack and at the ice edge. Figure 3 represents an example of ARKTOS classification prior to and after the addition of a fine-tuned set of summer rules to the rule base. Future Implementation In the near future, work will begin on the separation of the new ice and open water classes. Examination of the segmented imagery over time has indicated definition between the two surface types, so a new rule base will be generated which exploits these differences. Further improvements in classification will also result from the integration of NIC historical climatology into ARKTOS. The area of ARKTOS operation will also be extended to other regions of NIC interest in the Arctic, and to other sensors, such as the Japanese ALOS and Europes ENVISAT, when data from these sensors become available. References [1] C. Bertoia, J. Falkingham and F. Fetterer, Polar SAR Data for Operational Sea Ice Mapping, in Analysis of SAR Data of the Polar Oceans. C. Tsatsoulis and R. Kwok, eds. Berlin and Heidelberg: Springer-Verlag, 1998. [2] D. Haverkamp, L.K. Soh and C. Tsatsoulis, A Comprehensive, Automated Approach to determining Sea Ice Thickness from SAR data, IEEE Trans. Geosci. Rem. Sensing, vol. 33, no. 1, pp. 46-57, 1995. [3] D. Haverkamp, L.K. Soh and C. Tsatsoulis, The Combination of Algorithmic and Heuristic Methods for the Classification of Sea Ice Imagery, Rem.Sens.Reviews, vol.9, pp. 135-159, 1994. [4] J.M. Gauch, Image Segmentation and Analysis via Multiscale Gradient Watersheds, IEEE Trans. On Image Processing, Vol. 8, No. 1, Jan. 1999. [5] C. Bertoia, D. Gineris, K. Partington, L.K. Soh, C. Tsatsoulis, Transition from Research to Operations: ARKTOS A knowledge-Based Sea Ice Classification System, Proceedings, IGARSS 1999. [6] L.K. Soh, C. Tsatsoulis, T. Bowers, and A. Williams, Representing Sea Ice Knowledge in Dempster-Shafer Belief Systems, Proceedings, IGARSS 1998. Acknowledgements This work is supported in part by Naval Research Laboratory contract N00014-95-C-6038.  Figure 1: ARKTOS system flow chart.  Figure 2: ARKTOS performance with inclusion of SSM/I ice concentrations. (a) Radarsat image of the Amundsen Gulf, October 28, 1999. (b) ARKTOS classification map (without SSM/I input) incorrectly classifying open water as FY ice. (c) ARKTOS classification map after inclusion of SSM/I data, correctly classifying the open water areas. White areas are areas classified by ARKTOS to be MY ice, red areas - FY ice, and blue areas - new ice or open water.  Figure 3: ARKTOS performance with improved summer rules. (a) Radarsat image of the Arctic Ocean north of Pt. Barrow, September 12, 1998. (b) ARKTOS classification map, produced with initial rule base, incorrectly classifying MY ice at the ice edge as open water and some open water areas as unknown. (c) ARKTOS classification map, produced with improved summer rule base, correctly classifying both the MY ice and open water areas. White areas are areas classified by ARKTOS to be MY ice, red areas - FY ice, blue areas - new ice or open water, and black areas - unknown. PAGE 1 PAGE 1 (c) (b) (a) (c) (b) (a) Detailed operations data for analysis and debugging by human experts ARKTOS GUI Climatology Data SSM/I data Dempster-Shafer Knowledge Base Classified Image Original SAR Data Classification Facts Extraction Segmentation KLZ[kl~FH@EFp r  BCDST  !!1#2#N#P#[#\#$$''''''O(P(((((****,,,,,,,,,,0JmH0J j0JU5CJ jUmHB*CJCJB*B*H* 5CJH*5CJ5PKL'FGa{+DXp q r $$$KL'FGa{+DXp q r  T U   )*BCDSTUV N#O#ľr  hijV > @  (?(@(A(B(C(D(E(F(G(H(I(J(K(L(M(N(O(Q(u(v(w(x(y(z({(|(}(~((((((}zwt  1-8(9(:(;(<(=(>(?(@(A(B(C(D(E(F(G(H(I(J(K(L(M(N(O(Q(u(v(w(x($x(y(z({(|(}(~((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((x*~xv   ,((((((((((((((((((((((((((x*y*z*x*y*z*{*|*}*~****************************************¿}zw      ! -z*{*|*}*~*************************************************,,,,--&`#$*********,,,,----- - - ---------#-$-(-)-`-n-o-z-{------------------.....   ;,---- ----------"-#-$-(-)-m-n-o-z-{----------------.....º>*B*CJ8nH  >*B*nH  B*CJnH  B*CJ8nH B*nH CJnH CJnH B*CJ0hnH  B*hnH 0J0JmH j0JU,----- - - ---------#-$-(-)-`-n-o-z-{------$-------------......$ &P/ =!"#$%n}?waF^ݚr4u%#)8|>ZQ9PNG  IHDR nsBITO0PLTEssšLLL͟bKGDH IDATx흋z㨲FӉu.`TBY7 B /j#M 6OG~*^!>6\ {lɢc2Iy㘢lHNlm8縷φ5T^F.[d_y9WaH'T~ 6|Dhâ7n("TGj3_:]I3VӆmE͆XM7k;(&{U|t}$$zmX: UcUrta U]46p~}[ɳzJң/ YTq[چ][S ذi _V_7l7C"OWxk\|ѲaJZU_]ؠ⡅kgJ. U׸kTOk"ӗsOYq5" B)}#`%#j$C"mmO^WeŚSy}~Z"l6<†6|%`ã)6p6<">sNK"C&;jOmx-?6pv x'`ý6zMu"K&p>  w 6݁jlnC''k6,;U};A>-t s" mtذ$ dBpg /S&܉H ?^7M͞6ܘnԝH&@"w5j PN0`C* 7ˆZm_l:- <>vk饑BF;6Pذ.m b6lg(%ŤZ,5,o)lSX(j5ĢW>``֪Te)UWoXL %bzl0Ѷ呫J,qh/L51^jw UlP!À P: ݨu l`J/*vȰU+WjmsF]sb Ɓ%Q7z\p!QO$&F[+vOQk+Abu٠z)u@T$"+報6n k6U*>6a 1$u0d8<}fBMm[q f6ܘC+ӒsIᎌ?$[5W!*d!6wz܎'d 'K\ZcÓpz5r͆`6ܕ6ZJx!e'mCmx6 Sc?O鱀hy"q|NO2/Ka*IK p_j`A礂C%f103wfT@Ns0pT¬,/yaen\bQ†;jkaipëVո'GVFM XOaExW[l`ù"u=ؐ2{/1p!cى6@ A%*}}SBߚSmC\m};3!06P"-BMC†+`````````````IAǬB*Z;!:' A%ͳA6̦<5&5? ֳChm)Q'yc*OƑ4噹G'~) b+zK(<Į>Z"5l[1^$plx+l鶁"Hd†쵡7[|KqLx@d(2s " f3x)ܖ娲p3쓾'vl6P "kCQL'_Q@LmDЎ9` 0000000۟+D[L#/]&0p>۟+@%p]Kue=*Dh@0ߩKĪgbOI#)~LŖb_DbEZD٘F S>c<.AA*/+Dp l jLnɦ_iI.bpц-#l [{QdCeܠ0W{ p6@6&-bxfZWEfE6Z666666'l51)NzW p< t~C+8IFʉO5*x%c"NzNaI.'L!vTVEae$\Prwү8I qΓpB )OQEc>.hrƓp"漝 lV 雙NsmCLX)x JtTu]9r7TZ ~&ծw 3n"QK5IpQB"loltڐJT};6M݆5tG6~v)ͰA/ANfM3x4@ձi6:/6Ž&DI=lpW R6Ʉ5n0Z(N͜lCy(۠ 0Χd1n K8n=ML 0jպx35n%dklDi?Qc6ٔy'W:Y$> 1lÒ@D5d'9(T%f"%)T/j"-aHj6d+`0M )?nHujH1pl۠/p`uT9%283_]8 R{U-DQD`X l l l l l l̎}ZVӝ͒Sb*O<|mSjSV 5)~*mc lx:Llj3jbQvV"Hr[-v=fWzPR^` ǫ{LmϹ׫rʙLGA҆@P{6_Q~ꃪ)hÌ6*P-Û}"M!/dCy `=6Ȏe ֥G=;6 <}26č}nC:z "5S;vOVPrOA]WuTv" li W`J~k^d%s۟ l Q}n)ʅNFDaᆫV˸ bV6{666gxjI-bb\|oو$rƬKmpս6E=])Ǖ PI81i7 l* /퀹 O‰0!j% Eqv|ʗcIdmS"ζ62~.(-WrxT6HUO…6{V@zir`'Fm6ChCR9qpT:h * D o~GF e*:g? ؠ {M6IDݻq($\dK`r]sqFmf:9K !Zcp3A.@%pJ**հ)^(%.|F*Eu찡 9Ά~eખNlt #!orM a6ԚA(-)!l"C>p%6 n F 06,l诀لq]G+Y_{1x ~\*[TAT̊OG[a!blU+T=†\E6Q, o l l l]`9QM2e9b D΅[3`A`C3_l5!f&&N:mHٶwp^ЫUr! b tm( ]p6UʕpK`7\dD į23Lu6e*0*dJwHٖHCa"lc@GI3ɨ`'ؠmCmgmݫn6֞Pㆴj鞁尒.xt'Z ^ػI5 ;w)a RKbh+)RNxb^X"`TZT챁 }Tǐ&jM7666_1V4GQ3[%ɛd^-(6 ހ'ΰA.+mM)lcPK9&yyϤk[ #) 朧Wd>5k[4 ~PS5a Qx9>7)*c&0߄s8*yI "s`mddC.` =ET]6a o 8цZ ЍĈ 6 la327|W78GݎLȰA-'UPSĕmmd,Ml~ň r$^Åjͭؠ:lNj^Fw=3S[ fQMY/0k$"U?}`R%"6-éJKM ֗8iRjݡMS !*- l2˖bW KT]oʩjCWmPwuA`|zWUgPٟ'),6'Vl06jCamal2n rYW s%863n}RHβ Q\"Q; lM(+n(Hm[q "qh56c*dC4n?mm?Kpx0000}6 ͼ~GŃ&ݳOc:Y}aåL_yAޯ;6̤~J j窭 jYuf_NXjW('BGdaa*{l).E&lVEQyX!968[׌7f RKAV*j,sa*{FKr 69X S|)M ).>nE$zN6W !2eCOL–Ga23)_Խ|H?l|U+TY߆L[p)<666fh000]Oa(3sj48цJA@_쫡 TbnF1hC `[e,imyPY]adY`/6j+PZUޝR%,l8_tN6zof> f[ކަ %j/(,Fc =E T† <ߠR6h }$l u7B*=ORWpwF"Odvb*6H`H6ŗ&B]1* عju^EO` vhNa{pj N7666_+ڻM=3DY "DF5o qG*R&)TN}I%VB6dI$\UCʑǭHǁ ZbB:)Sغ|3G[:B}xT(E:!Q2lt7_LK\Hh [:B_ ⺬pe1DHSY9Y[s6COt Z_ M!AGAlP~Ei>$=!+}<<QU׾^R9P>wcTJml?H׉O+Y!wWޥ܅WoYrɇ5CZӶC+˰ ~6PP_}HFmhUu6Hkk8ާ]:M6A}iC-o D!d"VR?]% A/t݋ywsi$$J/G[2|…߄-!땂\ Wc|'Րvt? x %6.$ QOR?6$KqQHRp\ԱRߕ~\H\GR!:ci޿jUIti!{lX, ?&dWPogq>ߐR׵dk7KS>T86|K)EZk+`|2O~Np.نB IVc_7j`nboԴAj=NN 9G@6PvbCJr T(`÷c jI;L=nᎌiԌ[{d`goQoH*` a3aaG5: <\6<V=E@O` q "E>b'`c;̯0 acO4#lx- /$؆~f<4x:000†0630og~[ jcK.s#>7p6+5^ﺃ ?}qe+l,jË6PJžVlK†|(i;Cif~8/{yqmt7|̋ˆ>a,5X^bʹihpoZ6LChx2 `|$>Xd`Tvl<؆;?e#o~*Aq.̼46 %gf9.: JSq ^ll0]l!e `Sn"ꑷ VGq6Hw[)Wi<N٧'000000ƆG*  ?$܈8~w/6IENDB`n%q>5P桙n*<љI$M$ PNG  IHDR PLTErrrsss`Uk/ـ@diii ''./77?+/=HGOOZW_[jjz7CG'/OOD̚f3̙fDDD' !'L/dK#` FkUVTD]$Qnb JSYc7;7>IMW\jk{-_iggOjZ͙h((( 53UUU@@///???OOO___ooo̙f3ffff33f3ff33f30 `{(0EAZ s9ޜb{{ͽRJ{Rb{ŤAޔZ ͬʹ9sbjbjJbսs͔Ŵ {Z)Jxx;LLLr9bKGDH IDATxOךǏ۪YE&#$QJwJšn+YiJWU`.V%RJCt6qu֩VugF׻Qg9zf~r1|s @@ yda@<p \nm}Id%]`Bbxx9^"&{᚞d'ę2E:Nw!Юy  dOxlRv#Cpi#}ۓ~C쯐^?t(j<J#>3mڞsP0wf|BvMד d֓v|t_/q[ѮRq&AEv6\/zGSƀ< 4}ј^j^c0dqvmn#֡ WPqC$S/ف@po7X/@v dف0@v dف0@v dف0@v }#ЂCx%"{Eky6lX:Z3. }#29_(Oƶ.}"xnGM Bxֈ͗4@ ،$"{TȾf6Y6}6$${dd:3ٛlnݩ:IKdA,#go doN>jc;1=كϔ e퍁M v 1$f#'{2#iodoJxWlSg2^e {311bȡe`hgӲplcF"{wZݢF! {|q"4#D~s#__PC>tpA+ b@v dف0@v dف0@v dف0@v dف0@v dف0@v dف0@v dف0@v dف0@v dف0@v Á]rh\irNӚ7H]NÚյ|Kٝӆ? G67R:txo^%M*)Rp6*&o Br@j${ y[j$( ;sewvTOIk|?~CM H\=ѝCD@6$.q 7%5Pvmx?`B.xAӜ[!5??ڂ3!Ҳ*J\ M=h۹Jd B e";jPad6,;*!<6?o;rM,R4 p nEƲIێkk;w7%HWrF+_.#N\g9OpKlש|3`?BH@&{!|78b#|&r6] K\k ^e^b%+ 濁~.Je DF*|/vo!,Vl0sh2\T McMHm9@G۳ Vqzˁ}~v+;Q ;a@ ;a@ ;a@ ;a@ ;a@ ;a@ ;a@ ;a@ ;a@ ;aW]_6'MW]#Y[‘R,oldĕdof7١jV@d/q_6/Tkn"]%Bl ~d&^pv%nPdND-[H.E7= doi$#|d MeJ~r1IDrn/n~gD a }٥ eA$8 0:5 {kDFY|ĥ PWU/rdnwIdydف0@v dف0@v dف0@v dف0@v dف0@v dف0@v dف0@v dف0@v dف0@v dف0@v d;̣ds:2d;Fa?}x g­m; {,:o89gGۆ핽j USo,na^vynw>i<O+EQ/ITz`C=-6~drn6L/0m3n"})}EI?ΣãbJx綧-";5}XQb?m[Mk7/EuH2O+{eò H!BD=]j*oS3l:Sibg1Dv)vF3dH,-E2mqN䶄6^*Se7drQiWu7?v鋭2w{I4y/][^}l}tC MOi[[@! X6QY:\f;%ia|Vpm, 't"ӧ|dר])E%lN{X쾤˄l(u_r<yT?fi "[g.tiFF.WL}s]&N=-AD2kVd-Rm}e~q,?nfli;1o .R'9KjU:£/B'|p;{d*57=’&1l:T fT*y~T o͢"L.أ7Qݷ$kLӴdEZ0,5ed$`:ÍQO>[lg>"HbU騽֓=5RrBυcUl ]Ne;e02}J2yՑ}/ӌ"DoO%#M;loQY+eŲ_wGfOB.i P}Kat4/:]Q7zBLp0 \>ye̬/;%gݩݙ)m5٫iT>fo9]U Ѝ )Uuebdk/Y?VT*rRUE_Oȯ&zyBwD9N ~ chM]҇ٙL~u|YM[ĽK-شO}e7y~VK)OLNwLVSRC\Y`gi\1UoɾZz^ J,Q:afC;=#XGE{kn5"ihr`GoUӗ&tƪVJXݭnZ 勴Mþ9]R؅)E:nf/>b_Ӫ{أy?[3ӹd:$~V/+%ѥ4cW'WhXَ8;PʹLhT9_u^?{jppJV>틩9.SǗ;w||^ݻ?Վ} k=;Rfc558v/Ջ)푭>yx'Vsäsn>l=oMe/{8&eKu墾"{]3-OTƍQwbRX)\*u&[~ݽ^{^+ڼWUM_>>)`+xS'rmj5߹FjQ g>JIf6] nvt\GhC3.oIYI~-{3FIU֛vl/{a2[}K(@:v턪]K,k u7q=r5MutV_~󮮽28Fܘɏ,,(1}8|ڽO^t&ז2}7WM)A$:>c$:7 .HBs+ e5=9?x@+TҰ"QvCgy^[|7rz{MI?ϻAƔ׵YG VA@ J&pp<_jY,lʬM^3qVaww_"nK6dN1US-NTT1W+dm:y? H Ei|0!=؋hea;'™GҨBZ IA/3~_.O5D _qPX x Gvkc.rxon(C#Kb0(6K dJ咁m}9RJhᕘ"Q2U SS/γoWd-Q,ۻ{B_rQ D(⠀&1il,9Y#MmD>^_ תMYćJ#Kb` 3oj?^2b4gH `6]Ǭ֝aLGE,A~}YrAh @ ToQAmqT,  < z"0۾pٚUFOBsr{{- ]/5}e۷(!SDȄaoPײ>ǕeI\ZG%ӫ^8L/f<~1@o(w^_x`.7~avLD([_tʼnwִV)8l <0w vmiaw&ʃdԯ<۲bA< |MT=0޴7L{S9oFT+v;vJ[Y)ѓѧ;mf晬eؤ'^pkѨ%~lX Cwi Ap'޷F\BSݻ P5T`]>KVo 1j`׍&ӑe;5vSdvK[h4PHeJ=Ao:JR+]=HV 5ޮI %*2r\?څx1:lpd~m-eRMn_x X瓦8@:s1wܵB>0Իؾ XgVt) HAe ͂t`%#5v~l4ſHX!ʒCܾPw<\B ͞pNo8.| zSGHA R/4L6^Iz8 cD1*S,{6;-vT͆ ;bƚS\0t? ;U{aEe)bK 7*vhTzA4Kd[R@C.QtnCtkܛT_{79o L'S*_Wt2 dzĺ ]EE IP&</*d[Ggt0-.HGs% |3Z87.RZcMRn2*!b>̼䮑@TM.ZxOuz/ZGӑ\lQsJR v9.r, '0KC$7qi8W-32ȗk)2` T7-s>f)<7(r EBIdvqV7qzY.x6WKăi;bʲL}}I:߂|׺]eQ1՗d+SOQSRڭ;,G}MC $N pW`o`:błjI b4$׶џ4pD=\J_TZv5'$ Kk} IDAT1Ƚ )V~4Q(2n΍W|3ŗD{ËJ#!LMJF;.%YLة#Ctssؑ6Ux#&+=*s In&B}W5":z1[.4 -w~*j}-8εZrluvvK[D&|*N|%1l%8$2}izS04lЅP/i){L U{QMr #]Jeyx!\Uo|9O/nf bqO4@g1+`̊J%LFY~Ձ;.{z\>]dČ4@}h#"~+pt(ܝ8 `*9d`piV+׎Nt{&V@ͣ/9tN#5t@=?lq =!ӹdxŪ/˥=R43:VøDOO.4&h)fF$eB跌GKPgtyGIƕ+w9C lY7a`4c`;ƨcZ]C*a0g1~sh$lTT+ Mlc{y:$0ef`^!X on: zrO Z>oC,, Tx-!_R_ -9.5ؽC缲46,T<[(ӵzYq("u w h4t9~c`T:9L钿> `pQw$ 70M->1>|Vau]ׄ~LCl$vxXE=b"μ@.Dvj^N7c ky_9J\#! wݥOkۑ UhyA|bx'$(vVO}:+u*$eb!laAopgY9IUL0 Z 1Z|hx%|\\ze8RFZ̄ Nafʹ ۵ +.N]栬 NO7wlZJaj-gĻnuwTg%jQxF"ԁ@* IrPq[ѓIv U)!v]h?;S?*u +)EUTP2}e:n*<woWXe'9zh80-ih~ tp$YdžG?ʂȴd)1Un\tEn r_H["0omG nS)Zi-I0:_Pzrk @C$gC+UFPHs@0iܘ.O]\kbGi?H຃$4ˎ=Gz} J:k- ҮgA#TlC̫366=*ͮQ@1?+zSPq\#"*xlKzh QEÉNr&EgmdeQ:>r3k ŠlCNe2pˠqG",+>_<x*ޮ]--L"wFNO*4ЬC` 1/ncX@Ĩ^WR7r``>snԸV1ʀ_9n i#wFj#>m}9>24xdhh]Jm,ȟldYnLUeyr]SHE"4S"B4~hgxEwPA:y $Wu4@=wdvw {lԮxzp^ڻr؍PЩK%=K [ kz/C59gۀ5Yd27\TsBg^[K 3"C^< 3fQ/Ι%$pw65,%m,?~8W<idd#%t)vue0 K8UlHe9f-n?5F;vMޱoZ( IyѮ1A]Rd Iّ-͓ӄjڎCG SlxpiwT:30Lg2Nv9R?;zCSq"'oOuhQ^9s KT >h8`ri Myv?X܋+B(k2;F_w=vU}pX}ʧJ={oyx 'u6-+CPG]_N|ž@Z2+WŋӲƾS!EV-֐iDt#Nq4/0:V<:&@f4 guIv6]O?.K42B ր_3!h#&nz}Wn,`@xhQ{Bk=~]k-S/6ޢec_<Ἰ-)2ގ`;O҉EM PS`ç{m쑌-ħ_gCv4^1kWM,{qۯ2 PAl/:u4Iy@~ưxj9p$!տ33ӆ X{q..M ZQ=򳿧hFA0 1AX@Ec!HG@1kNzjgtGښf/.-_Bv蔸0铉 Qwѩ0c85 \qDhÑ*:kۀ}PDn-'NAڃ`oyw d A"Ŝc^< Racw ƱftgZ3sA<_ iN1l[Cl9S|lؠT^wPƾYV:İweޙFvCTګ޶aW9E뽲m2ҹDE~fmPiC>*TpIs`8z+#O& =5@?vx!`C^ `ߤMMWG"O~@']1c?iZ << BQ~ʾ.ԝ*37}E5ePqc0X V$1>0bN;v}Ӡv.L:[ǔjc-ioC q@_F Z&3QM>d"/x$Ie+|7ا®-ymD^bF_c_M">fe0] ZNĂN8~CId.NgnЁ15rW`0ѽ`ceu쫲gxIѮ {Q 'x7l y`iR&Q$#'4!$c<&s-3R!w:q MrcJGjj JXQ@ceYhrӞu ͈^4({)֩V2$9Ɔ1]&y?,;bӄ )G >vyJO䋈av&`ǒ*ubtke2]]cE'՜xHcMÝtdԜ|Y`ՓF;I Iw"-tlP3^R"a؛%R>p 1~__Pf;TX1tBI7S+W{'*&`dbPO7C1,ŝ~6ŽCvə 3wN'.-an>='lj؉xu\-=}WZ묑)!J.ǩf+ḳ1 w[mk{7tl? {v8*,>G wj怞*w(u)~PuQHii ӎ)LƠwʮv]Dڋؽ /XSvq}a[)g=L=:TWôc)NH!:+eJ,ٞ){zL h5Щ# ;SuzMDIZ_/H]"](@{F؇푬^g]8NEfWS"t֗$SIۚ~Þ,K`!Ck8o8 DˡXL} v3` l=Kv}8v/&OxCLk&P flM;L@^F&Z&d42W T@H*aLfx j}=GPYd%y/_?\6໶lgM-WVyh]+;O|8#ʖ Xv%.W祗PgH7l߲ϴE8>| ˵ :,zנKsjny6kEc)_0Bدgp&Q8&O\f/ S!o웇Fnޥ)8N[9:vNm=ɜZ~}GunayɃRCꗑϪ^%[Nv!AWm|{®Վw7ϫuDLp,$N S^N7!#oR:T͔k--3k譐duW ^WKVA̒Tac,ay֣~a}Tc[?YiYcOY%9ߵ.g7Hݦ6ҳ6erI$[4 lsY}gdnY4svq6Mc/񏾾>F)N=AJ9VpҒ3rb>OO36]K罷QOi$+f-o}w 9O͂y"*Oo(XH; 0Lj$ivwĄ:M0*Hp=CM# Fh׿+Oˌzt@֛XTiSIF0Jޮ}2O _~L$Ӵ*6t:d['%SI@މ3[1pּcm}?sw8˹,ԲΠ~B։WBi7#Cل!9Jt 2vbpB6'S)+g7R2 IDAT0yK#t/R,NkMRjo"M5WTٙxu)}G* :x)8's4-x"f7tZ50z6\ˡᢖu0t Gތ#8Gƨ1V][,Ҍ:*|FKK\w0@5 BY`SijN]E`{}z~E[6{q*cjx8bz-O |$d\ k |{NGAn6JmE܉Z$beV%V,;Tu<5Wk{8dL=gssIpqB.GJ.F|Է t+Xv Dx۴' v+Os}q Ieɢ/YxFt8'\Y'9MEgu7\)qmāI :DcSQ:%RyiL' C> G9!? {W%*>-<˯s3֝x,Bmv$R{l{$!`Mr/W?yU=?E}0g0b9* [xE`*Be]=dlJG>P8tWUr^h͈Wft9rx >Bft ֭3B=."^[:(}  HlNa~ DkCxq;I|z_'n3K%紟X:]k9\kUq? j\d=?`Yv:S *ZMlhoIj̾߷Z!}GzN{;iZ/E+~vUa;z9i5j-sZ 4lIsLmdaw5Xr$ln A]iEcme|yFЎ/=&| K.!fn~Z]j7J?bL.%d,ɖ/gz׃:P\Dۉ.;U0!" Qރ7>|Av ز;p8׷rFhrj)=yyYV3 |w'@ΐmQ.IUF9ާQ `>R\6se&& S1o;$szA (4E&v[z9Eh&\=b%]*ubN?R{T`T_@)2/)|=~v >MTM3HSIlIjAU@Hb hocJPŜ -kSr"ki"Qӵ\C?ւZ~j9m8IWL^ U M\J-fB,鉺X[^fRYk=M { Ɲ #O?)%(1_Wf$`D*H1)7l.3ֈ:QN{\_64"@U0;{A*X~W&+#ezOnE2^䔬$Id״l(W \v>.$\ߨ{Y;5xf ]$n=.4$ e?& V#$=~v QWcgbv Q03=}tdT}FCzI|镘.'|"l:ۑ r1LޭHP/lPg zى2Mu`%u R%c;Mǫ1[e p"dڻ<χ2^j0ȇd4NPNNrqj(ǫg>Թ>0\"ixFvtH:d#ֱE- $;J\sK3xD<#VڻvW`˥ ¢U4 b/L\;H ԕMFeځ3qtSdM秭FK/l7fk4MRJ)5q3P.1b :mx?)J)eןzzrH]%</8\Ͻ[]'&sszz7^9o=aVg]{qO2mA6#c+GߋCP%e# 0kj;F'Ȉg f@E0L{JWYň ?ˤ.dJt%"&V/$غΞDbTIy( 7iZBtMt¦7xiOXKm@G-dZR=Rl|9?֭&m>, *氿á#0uݻ ߓ@QzĂ:$fٝ聪CjOh>2!1Ѓ|\uMQtqM3LӜZk:=tߨZǘR w$Ckx[Qg\5c=ow1|m\ms gGa/&aI'j^j װv~Ax&rD/+ w2*LpS,pY˸츆eGOT:Nf7f.IIݷ]t5}?0^ 50RRSv veO/u[F[OA=)qɣa\ܴ0'#4 2S!=%YcJy-҆{ڴyې>P皚>Ѯ-kG>xE +pY]1ψ| BdOVSB;(q{AeWc0,O-R7% nK1aLA]H=8}VJ$%!ֻ4dU:sFp5EV .\Yo[eoKƖ1!w5fZ:PQp7}'DXZFSGFvl}^%`HG.{ +vBP,t:%fcB=maݍD;-# '1) ;tL·yX>XC-RUM71Oe#sc~Џ}_x 'J4J7\ !BX7fná#pop bPʞz"/@Ncs-R&Yիz|/ϳ!qS Ґ7|Q:hIRJ)JjUQ!x*t2p׫F:*-tQy\*ύ#7 iϜcVޘW`GHƺbapNgG4zf><({PU ~sn#kŋ9K:aĭ4<5ճzpi'aΧbT ')т*,⤪.N|>"C"iXeKjP7!j MbgunQ#/%Rg>x҈{tqa̋jy:a@Gf{WcqZ(Ο0Z\ڌ釈DPzpvBxҹb<_6I/w8͋i1# n?EbB TLѯSa$]ϒvhf~1&y^9`"Yp@HDzdӊrM.q"1rFЩ Ⱥ^t;S-){'k1O^y%&Q)Rp4i(eNnabB{ݿV && M8NЭGv7ٳ3fzy+eR :_[Csgvi tZɼ ɤ Tf e<@ޗ;;мowdt:/de) 5dܤ}ȼ^xuhtT`cVg|(E?3*ȸwvK镕WbNuBK;sumavԻ;Y -#fnߺJ:g' Ang).hY{;`G ԤWM-L ?90o)@Xd艜B } $; IhdM|m>PnS!HIinA=ccu#NٍOgIntW*P:4BLRY3­+IzJcDIY;K; :u`2Y] vROl}[cڭG{-ٍ mq׭(3n$BI4򩾤חS빘 2@;U)Y&Ig4cľDžlʬ\=(Y(yb;=h\3Oiqo&F2Qh/Vk}^rq@;|-rQKk~3T'xc c8HrA11Du'R5XYjovXw{<:^!X%T${! tdr{¨](^R8mV));%ubxV1x,Cb*!/<ꝌxhP2hX^}7uZVֈDlވ~M2U2׮`_ ՗uO?^ e4|^9$c$jp.,Ŕ[ 6,Uj71P2=aao(j̺eJW%ch0[ќEC8"kt#A«Y[6}^$-Rtig+UbbZq{[5l 60D>icykln,߽(wnÈJJ!*QEl|K9㮐85-Y@R)L)4SH)N Ð!#HW߿ZLΚsxn èyډs&u!Tj0Z6]GGY}jDO58C{"\Yg8ɫ$!8c;09̀b{ӑM5D]g!}J S֍x7|F s9&;{`-&>p!g?qŜ.Mz#-IoĖʞw2-r'.ya=~Xe~]1<=LJi'-{-ϯtR,ө:zUE=6i#Y\ǾA3&?aYCU &T݁?'(^uC1==U>~' &lm`(, QΣzxAwxrSs -uӾf~S8G ر;k]DͲA k : gȀ!LӉ4Xsl맥D;^fKNS=5rƚXf!R5y)|X쵩-ٔ,5饿 }b1]>G ?O^rï]ݟ޽'"-Xw}F4-q h9vLw(iى2PoscWfNR6VigjfX'>hU5p8i^VVJa\4̝>sË]m%Jԫ]hk^X\:g~F']j3[a}ðWZu? j@N1"Rx<%c7aj%Trje # T2'dJ(Ua۲) j4zٕyx[/7篭A{ q1Kjvo', y]*ֆ}a_͹HBa'K,5A49_5 3?u ?f, .]TOP6T-K2\8L': bVK^b{z|MW"|fBn%hD"|z7<:iϹa9tlv)J~l%Ӫ\*JjIe]B}jUIM?ؑX,;.cts);VTzмR ,S`qʔ.`|jx sQ*͆| )EelÙCol :yW|fN~i9?4֐ d-$0%daKr^MHt/-X_Rrf!T~:i0 Sequ_ɜz֔Qj5u] AB鳊Ra&a'IKȣbLtCi*n;?Ukz,J6ݯ4WeS1`/|qXɮkρ"^pHQi@$4+_E"rDqSY$쬩hˁ݈+YM)f>BW?N,ϧnSԜel HoeHrM@=2o*hySD@6D.M8S*uh-&a'Kz"ґ0MBMoM3oHp4lYDG]$OQU`P|iX>FYdIUqcٛv" kp/%^^ë$$So_CթP XIfJ뵬R. K*EV,+fِt~WUcp_.N:m](P9;ΖHy%pCO2 =9?lJog5OLo866 ;|PdX6-aFle3/hVvD=midKpdY%dC1`A(ƚ{n?ުMg0(GNOh>3~yDNZKxDp˺?mӰ_e&FFFR)02lK%T*Yp6躊'CʔSwG*,;7jPSV7]zzjApqU;̷mn=H{Y4K8][^a_5m codi@Na}lGSMYh7+%o Hcq6Y.gc]oN:>Wqp 2D $G^G~O'VQ,cgR#捸 'P] /[RX_/`; U5Mp50ϮK; = -DܞQ +Yp75u2|c`dS8mvRP&.g.TCB i H^QS}/+9<{A468YI)4 ϟ..qR,ܰB^_ZO?|YB^4/>\q+Ɣ:MFzP\ Ca4atQ Bp=ln̫R)#ꩀ`TmqqԊLƶh¿C,^pAUga6Һ{՛[ݔ6e7#4]N!`4M_btnT7l(cR@S$rU#ޮL;NfjoO&$F.Xeuf#5>-NjwPL !YgX(d?ҡN#t QuJ鰉0F<'BKC>5c_߬Ե; To[2Rko%* d밓s&X)ݪ26u1TTCd7>ԀĴ>8eǸN7+58;5S5ǃtxV~VX)}d5ֻf;6 qYOW! Sz\zTDzc,h$WIϽzV j FdTpɣj0%&mvxC/gtmgPH'H8DNM+ˀy nB!njZs3gkszi-Ij `m55qepN.>C<#CٺƲfC/z;)9E{hnCG%Gwzv<F; ,ܝ H&M{û#ӧ%MHs>_VIe~aG6 ηUnV [U $7o]t5!T ,(`Dž\ity}@qR1,)NRw2N>ӈ_UT{s6=F"_-<%|L6nhmOO>u/oȮ«g޽[xx 8YRo!<߮O]Cӿ$ESugS^_Kb3X.` !wWPMÂR9~.(dzDe|:,>6f|$/AcAG"J#f^S_((;̑'m&=yebICRBk(64J1 ׅUbJk_CA ?J!kSظ(  V< oy$PYL䁌 J(>T^y ء xT((ʀ"PP$ 2,wh.(( ERv10G) Á-ξAc0zQQ_NVGàF{B< LCE޾VP'äsf%o"̯LHgʃ{-O=ZPjka y6P۷Ҧӓo$ BAT(( ERH*IeRPJ@}#IeߔGA{A5ׁv^F)r60N)/XS72Uea0V;)[IO A)i:؉u((2((x8LRH*I"PP$ BAT#[L6> Hs')l^DomXZ ]A1sd"#z$kQP2` \,B`er ^R I*I"PP$ BAT((M~PO&NS{=>m\3.tȅ.*+$~X_SPLRf&ȅ.F%?#9T(( ERH*I"PP$EIz ܇z ĹST1pjdz0$(5G9 L0,.? 1}Zc]zv|,/(J%ԃ_Lg%6h̐`PA)Eyԧ3!(ezٽZmLi?`RƆ URōG0,} XLnV:zlx8LRH*U*Ց|H*I"PP$ \~dvj((yRPObډI;42b~nOZcHGQz RY7 [\CյZL sw0-9ŵ*]72"^C <}ܢ 9y8k 2E=}'SHġjk(-;BquBAT(( ER#(:wPP$ 2+EEÔ+$@ ctC? s>w=ȌJs*6,LThЉlaA+z.R^PER]C3-(Wh7E%MK wP*4x8LRH*I"PP$ BAT&5<;KeB((J$ gXK UУSȐ3PC`E?e΂Oz*rcR'%h~*\G3[SNN0Bay4)jfn8}Sv?sP|3ZGU=}:5:}(pBAT(( ERH*I" {H* Eы: 0?a8'w ݁Qbz7PQd.tG-)jfn8=ce^QPOdBP*VPt&Oc_ j[UD&~@o"mC-a >Ay&Դ\B}?B-|E%]1Q rn@>yAGPP-@>DLy7:r;ɡ `1mZC`ΔW X5 w|+PWOet #xJERP\<(9a*H|=)#W>dP$ BAT((Ny=N)(%PP$dAuȗ0PSy:{i/;]\(߯gPPDtIAGAΤѕ e箞&&pQL ʻicAqk/hf< ~P g|K$oyTهZ` U}( 0I"PP$ BAT(( ER`XM̝CAT< ?.'{)ry9Y P+Ō RZЖ{|4を#ADʹ%sიqũ8(gIPD'$'qp^PPgsk xeS$OaH"(~m$m*ѧ ePؿSN5A5!/vP\ H*I"PP$Lo>Z[H*)(oe~tE]J%RTܮG(}cas{KVDBJ]H*,t ) z`VݣPzhcE>dMwybR\Nx,֒-U"R с mƮ6)c95T`ä~z+(ВJc#Nx$qTPrgŸ)O$MP%KEA]J*^(kb5oyˇnNy{֮ Jwblʎ$0#I%؇œ֮S4M`NF|VB'!S8B,RJe5OP$ BAT((>eu.Xj.? rJOgeO^A@h>zײ堦Tkd7S^w۬Ƈ"!s̫ uM씠x |7F(oLwU]EyX/zK.A%Tѕ6ug6 Nue,E&Orv W/,yPP)OY":kb k(ebeS2r#6 Jf`5]~s6AIp(eUAqIᶇgrSAqTUZzTn:BO"PP$ r`A=K}H*Ie~.'(w c aVu hJe48r` ωe"Mȕ {yܶ F;#ؓŜGA @Gkr?("txe&5Y Vu=_PfT AOP6(XQPez U@PFA3kb)OW\<*i/fVP=N!Ћʰ"(zߕIAғVPuR}-KLQ#R_C飸E> BAT((NAM.\r? BAT΀Dz}eJR'+ڳB1<*9;_<%InQ[ :)K&?u'NP5\ dJlQ'tD@P jV }ǃ&P?YP" (] PAA+P<olFܸbAUPex%h1Ő$ BAT(( ERH*I4;.}I"8E(w@C>]5<\[ʮ ygS9#(yO,` K888=3]&H™.0-!pBAT(( ERH*I"#mTZǍ" j+c=\Ju~p׀|>/v^ İ諢L㺂ٰ9g^JG0X;?vkeb47ё2Mԟ`tg2["{z].; .U J*JwS2~ʃ+L)b5-)g0__CI,<3-\߀8u1_HWBl1 ILfRkI*I8A| H*I"PP$dA ncJ'AATT|8s?ںA>)oѧ'9zÒ;su@RUj s+dlDGFJAX'ǕA>5ԬBB>oyJY2mePPk(&5\6N^i-e-XJy,\Chhu[0I"PP$ BAT(( ER^ེ[?w@AT6 fLPS;Rjf ro/]m3t=fW* e]A%XPfh M3.7?oyKN"IA`#IMFPʖ~*ZJ۠2j2:4Gy U'|uԷP.A+FGŋQ ( Kձٜr84v4 7]S澜/(3UN¶QBAT(( ER 6n斤R{'mڭ+m_K> Dma$A0*x#(UKz\ i6S}ZV9[:Y(nIVXԓ Ji*noT` A^'(kl[;k(R"=vuƾJ5!`|^I\> 𥻷~F.{gRʛeM݇s FR_PZEg |EOccAyFe݂*efR QCAٙgEPm JLϩT ScZ ط1T soՏA#.ݏ gU2h J+!xy;]Gj1o%67&uA{3Whb U `lħC~pxmS-/9 +FP޺۵}j [I7+T@dzb'QO+\5 Mn%Gv]*/jVuZPx۵$l˹]Ų^cSJPyϐzFn:UJ]TN¶vJPH*I"dzl{"CQ4htc]Ƴn4\ B*(-LAZ\Ѽ*-XE ܯ1Oy}ً`Jl^p>D^yK1A+@>ϲ IDATvz2b:+APvVo!F?\Up;eƆ⭮d=&KZڨDVcP׊z AZae52ul0K\|»&\T/X8tc)Q]16Wa&%&c7mxqm%B lx5EE j ZƮ(@{n]QO*(|F) TA=+mT`U V j7 > KKC ԊPfJTϸLj쇑_q1QE"Tx0:OFPʺnςtcC80k2]UcK^~2ch|[z+ ctjV5YA!]ء$x,@hIh q<egw>X2 #-vS*Z$+lK-ς"PP$ BAT6xlk·+EݝC/gFv/dze Lܢ8A/[Mgya%gK~ m35rv^Vi  d.V;6/A'3*w"}U]y*VI|D扠FXgH_?@l'g1vJ ʌPZ7*@j`ZoXN.Q x&(|"M$XFZaޖnLL{]:_6皦|$[!b@劸)8>[C͒\ZOH2$6`+g T%X >jPmF}d3|C_o= g6e`rlj 6JY DFB9PLI;H` JU7ljUkeAٺJ5kJ'l  j2^Pb'9A=Ju*ke)m@PmS մVA)'`ԛOfiiEP&\*EN|}A%_[ĂZc jo3cj<y.gc@ݘ6A^TaAo+sk:&Ȧ 1G=Aaٮ 6 JT_7kE%To[_Jgj灉SUt1&QUhKR #WZmAp8Xܣn"(x]ܩn"(w]nzwyI"PP$}? ;0[ fX- ĉ&i Y`;+Ndӎzpӻm~x-c72;Ruw}M\H7u& (hZhwh +U3؜T/_{+A_Z-@R5JlQkH+2d H꤇֮TwT5woAP--6RGAAakEJ b;2gIPP Pؤ![|V&7uwUo /(oNƂ y<~6[)&݄ }RKPZPQ9 UPUAi>SP;:k'X, z\9QPWny-: 3ƭ b;2gSz$]s̓)O9oy霠& Ab E8[ʐ9V0ZXZ%*I4)!|\J;Dz{(bQeG5&H3e:KXo&Z%(wAF}hF=+ZOYƂFZoenՒؒo3ANP6CKgIC} vjZEFѕ]#` 4xKu0_c*tҠ;+IAVKuӵT"%(=h *;Ah귛 eZ\1Q\sP:{((U)0O1LTYWuT8+McqyS*@P :G 0Qyj!ëPZ3i#n-(\i*` :[7c?un"(x7wIsA0J`Dn.""PP$ 2}PEmnF:(Tl>[&/"WPY ,2l)r{$YAA1Ғչv hru>E'o(CTџj(p!5\'hSA/`lU U'( VE >lFiNe*RaF%{AqΤK*u!NtJPHAQOL *Z:XPzZLyf*|u\TM z:SAj9ES`?l .`{7EVPʘl&:HwLtqW GT{fu 35hl7( p6Molvî \p,RWFU*LB( ERH*I%7l6n­{h$tsev`_ϫ-n"RkǍZ%iu_zgAd.e@xYd,D)&:\A-W=4bW5T%Z_PdSb/H.ZP.iM>0Ttf$cYBt^d7.JP Ji)jLP#dAœ5ԐDcd[ATVPL E4]ݔ'=x.(XCm+՞I ZJ`uzp+oVb%dlcڌ_U:c3HˀtAI8༴ٹɁ&IpX/ǹz3rC9JERH*I"܉ozP݈ s p׻pBran\A.61>" 18)\+88H&&NBA} GdR(`(JA=C\DP%޴HA}(GG(/ Q (XC-j[EZ rGcapϯw\A..tڄZC9\[p p~nrs֫S?I"PP$ tW&}6Ÿt`uMӨbe+8QP t\GаmB}A.$NaTFX'A`}42׊% łw]t.06PJqA) BA]O 0|."R&<.Չ+b R]T CA݆l k%XMy:0U.`*`ꪦ ԗs!א,.` ؀r ]!p`)c8X2OP$ BAT((ʨ]6>O9 ^4دj76;X) 'T!JP`GFq=r򱖎BS+e-trkL Ji=)DI|FPPSB< YAAG-pkpO b.䭠EAfrQbYR r0vh-(wrDAqEȘJ$+ i )ɂjI0a0;Ayhʫ亠jPPS"h;EPS ӂz%)BtDk(ok dVMy)@@Ln&PbG`#ر:BZ Ԡ&ZL+B .48QZقu} V( c@. /G+[ +}_*J P$ BAT((q.pq=g WPvn=Հd+ǹ$hÆ;Qd3ǹ3Km!JcZ5Aܑa.e6ug2]+#(-VV%6QTG/͕}mG',0 _l]ESO8X Jlv@a)I k@Pn ڑys0Y#uSOW^#!A PpǦJ1aR 6cfR M1*U)+;S㡂rQd;)ϙX$UD/NyZ5Y"XQP9X+` ۱Gsb1e 苕(\5+P-+QBac`@_ VNpȱR77wa !$s)6"0qZ:]!p;`R\w r ^goOH*I"PP$}wxڋ3-(;Zt3 }zViaB2] "1S`PpEKRk4VcFŷEP\D mQPnU ?DgHk(AD㟲?.(b2POٰm<ZT0tAA0ז)Oluk(' ^PuZy1 ʯyVP[lGEk(rDաba զRxa4AaFp/(t;A &W$(]+x䂢z˴ڛ H㑠R(8Ҫ톙] j`$ʢNTA=uIrss g ]JߗLa6!BAT(( ERnf6g W LYHC,׻$hBx8a-W ׻l5h֦CT.e3Xlūݵ&sQjFೈ5L;kvW)6,04#&g<⒅]1™P`hr tE=\0YjFꈄ6'(k'2i\le'ej͘+&U Bkfhz\lU)+(%-W:r`#@O J@_6W[DR\QPʼR}UmiZoC\LyW/KfҖL$l꓈S0up<7r˹Vn%W#BAT(( ER pT|؀@7[JrQ=\;Ȉ6( *ۺe4VoZ#ڿE>.zBۢ$5~GWBQS[,ʒ @­*pG.Up $ B+l.&.X,j( ŌDT>IL J l.fLyfl-\M,up]6ZHUE-l.ΦNvUb 9Fdwq6%:zbqc"| pEp+>gnˍ]: r6"PP$ BATw s-3\^o4tQFƸ2۫nܤoCoڂk_& ׻1;P 8: Ӑ\lKZ/JtxxHX NAep`T}͚ZM~Ć)4.wҨ8וX{u}ܨIvr Og@*w,(5w% J.<#(3zQPGq af;q2xJDt^74'1U-Wv6Ua n4EqKz`6uMڈ)5K҉rX| nnٝUBAT(( ER;k,ݶA`i Lx@;Af jtL3`XN:O>2Rެ\Tcɇgh".f:HV>yЬ j2u.T*'cVPzvS}Z{*WL%;1î $!3L.ʛpϻvjЖz o PPse%AXi=%f/ȥݰG19^s$ J[ZX}_ 5$CP.;Sr9&ENєw9]:{ r'ERH*I"AƫpAURsxqle\7`6YPFR K~"cX`.[ad--u8Ò)HdA%PPJׂu -]F UA_YdN`=焓O "5ań:S\0®-ŤCA *4\:S\'<;b6/k9|ɜa L\ J[*9\ul΄hT[UK]Z%Gr `Ƿ)H@ՊВЧg?,xr6wvX'wP$ BAT((>,aqeI&Xz"gy+}7ѥ)[eي!:8Qia:"ߕA %N~ؗ#Sy =AY=1RߒCNA4YɓTͲEP ꡤ BA}#;% SPev Uzz"PK U PPdTPYMA=!A<{"Ie@PCAT(( ERH*I"PP$ BATHAAA?E',S^ Gj~SPduQ碜 ]PPd;m >~-)()( A !S4AoBG/솂"PP$ YV~UC#A k\Pj&B^5&_GƯ2bPFPLZߌPLhLdf ?n oy!!F>o Q9I'{G;WcMP ЂUQP$ BAT(( ERu(.PP3PP^?8TEDJPVaP]PP1 eW [˪y?(PPc \uQ%QK!JAAż( VPeQ塠:oyn !T6 ,) 7Sq(( ERH*I"PP$ b?ArQ"$ BATI6ɳֶG IENDB`nu{GA+]Ǟ4vMϘxoPNG  IHDREiζsBITOPLTEsssiiiǙ(((UUU///???OOO___xx;LLL3gbKGDH IDATxk,q+aapM/*Ey2{Y~|4)j]zRKdd?_zG߶Ǘ}=ˊXO_?_=oǗ}=~?ˊҝE4/OD-oԯ?y?/|~~ˊ7E2 LoZQ_oXo~>~k<׾wZA+WgEΊ~gmE2;o_VyeP{V&F"߹>꧟~Oy?}+ i/%UZF_?ϧ'~V_)/Uux{ XW^?}x~wk7OU5ү?迌=#f2?\eEǟoX .~3_ǯ_V/+zǗ}=ˊeE_?|Y?_V[Q=Zk2{٫z׈?\kRj[uZXcBx紾9RzDx. tkJm *q*we}cǧ.uxOwŻŻPu7OR2`r\e}\+~ ϷuGwfӥܺ4q uCi]/KZ;^%KY#^󆮉LL+m⃌xīO2llf|_t;kn >Omqi.,=s/G;ruYQ\V:W\_.u\upqP2+.k׏mn׎8u~qlnɖ|+ ۱ Y-ۖ{=ⅱ*}u \_`Ⱥa1$]7^w /r5]W^Z1d j4.SEW ^0'iB,]]]X.Z/iܺ3]#.Am\._q;[CqV8}otŧnƗ3Lt gYg秭G/seīeXgo[_U'# 5j(p/_COG&CE?yP\";xrm\~hfTԫƵ]d ֍ iy)qpj <[Of'S9pDk+\/u/óA ?sGSSV^?Av @O?_ݖ:,Oyڎ]'F3*0;۳=wz LfF]‡s77Lnѕ;+L}![c EH_bW]UL˛]>N'V.7lJ8/yqaX ;Mx:'g^qq=bOJľ_'w 2ǟ>sp0 A^+C\ߟ mm:HWDѧnh粿ե^Wst08#zz\#^ar3#EjM>);+V^[ݟyVȋ2U)VJ}* m€X~|BqJJ#$sV(q|qq-Y`#"iBBRd#CttRsq]]ȋLWSd+Ubd(i%}n5_DHnJA58eKsC;: ú:f,_$.\Wu{d6]~D#N2>%ߝۨ~g՝'ָd /Hw)tŠnLܫlk1C2˭kp|20qONv~DVMO؊=@܊xoYr7Z}BSK(ΊA'I]xI ޘ#IR7Ê]/ /$$I}z ήƔ4͸)k~q* ƹ(XUW)qy"kϏ^Ec7gqбIeMDz2YH*vpZ2 B+/&"N. Y7:tb޺-M?='to?Qװ#Ҹ՘.TxCoҞhQF82U6]ˈugJb9<|ygEq![.8Ԩ{(jG]ҪG溮XF7$m-G*Fe|Q²ƓI='.}, EF_|J&qf͌Vu)xgEYHs׽-fB pqAJmHlx!NU<ϗ#$(b\ )sh#QqVT3sgs8=R a,B}x[A'8K5sR1ųⴖu'$ŗtG|HBO!HR6hR0}\/7Ƶ$w\-pa7ҏo0H:˼aJ푱Fn 4+ͅ$ZQ׃֫eEf@'^ZISZBqXQ `AM`SWJ{HTQW['8xb"v\% uVee < _w Sx'B2N}MJDBMyp' u?!)GVe1uюc͡}٠ˈ;n xp,rS%@O_cF(({#u]*@:u-ه;+"dd:0B?#N8PCAax^;#9K7O^Ynt> 7Eҝ2U6kﮂ^N񔢼J_P-2^HNJpnHUDNƇTK>pxqwyŻ:4snA6}D.e8zPeᣗ-`APIjλ n=ڕhpg/NjiPo7@ ({ԋD\s<~"yQ,\>M ɡ(g͇i(gւw+>ŀ)C'_u-jW[cH]H -̨"ѩ!bZeJTݥ0r}]ܱ^SjJGxQɩj$ (բ>kQ iȿ'yT =:W BPэKbP"3ŠV|wVcn +]*=("IvCz3q :6Օ!O2mChD=@ drugslbHjDHM3 o+# F I6hӈ`Ѕ)Wo%q9aswK/I_#o\\u݇[_Ygv8G:,9W7u&[!1|Lx`lOXN}G4E͕G:3 bNm-Cl*6j%7kğC8۠UhPŇ8%cn'6[b'ğq\ 5*\Ň8P @,|eOd5*Wq  )CoG3~<z2(er:ឥs\̬q(C(qͼ#~ WT.^ȝ!2*u)Y: i R Tx%IgL#PrgT>"ݯU62?3mXxoy R!4F Sa;Pjo5E%J 7EGN{-GGNߦG㺉KϠIQDޢ<GEGd[D!TTU/}SE>|qǣqʚPBudg\D%5%!v+c M$޲bJAͷ]?D)U4fO rz _O~q]DQ͜s2$QMO[*T5g,o}l|RP}(M̱c! ܰq~]M1㰢zx/.%H1S0RqQb^N ȟ!@>\e/J̜c 9Eslt*l' 2vr 5m%&~]܊ Va=3eUY[uTkVrI~~kEAsA֖BVXttv2U^(uiQCLj}Gq,3Tozw5[etw?Lά.ڀ|`7'v+'ݡǮ<3m\HC#Ҫr ,3$uRoa]@&5ndn۬}K$D^+K_ѻ0Q>gN }o7ұ vs˗FW=Ds9w^ H˼LѬ/rz2݈mODȤZ) F*#]+niT)~W@Gyt[Bdz&t1l2㦒ܑwJ9=^h"@w"~]2їC|i9*e)f'\{b_ܷJūP)I|s*⦾OLf'I!(WSsJbu LNxWrJ4}v#E$3x akD) ݟÜϚmoYj@qP zl5|2b.~Zr>դp碋)yeD̋ 3#!8qƪAŘ=QfF̿-%wDC@i[\q${#(츣%z8@8ښB"ՠ`m*8@Եw:+& Kl A0J\:="{ XV1S qDh)\qQ G^K~Ys%fXn3OA@n4ԧqT=áFlEᩪ&V/wk q>^ojFQ9 p+1f"f5O.x['K8/n8!ցU߄C.C|I %sn˲j8X$LI!=(EyeT u$iϨ".G{xL\|Jzwb _ȆBSyTL|\ctKe}, r"N7XE*놞@kPr ǖca^p3z2̂!1|Yf%ib0=vck%Ye:e M1ÐU+ݲ@f4U8CФa7 tR%J$\4ĹҀLV=s\y[8|ANA&31ЉZ~jAf c9˹LP^ ga.iO<.Km@(NknT,| N  ff@tv%;ԠFӗzz=yTUUQ[j &;Pər,:Su_fV3@fE5Prmg楼^KeJ|z04פsfOC0гr䧑]?he_36ɟal &}TS*ᄕ]b S2$ ˧Q|#| /m>Z3DesӪVfâr PMsoSt31*gf+CbmJz`gC-I0Z*/:їJ=h48 Gc}װBE٭ǁSw< IDAT.g -tzۈF۟g}Xqυ{Cm:%\y[6 >]Ӏ>DN-TzG`@VwQ h?<)z})6tML4 0PJf3:%"U g1X$ a\x6/5 T34Wxa(n{8fP].|_x#~\w9\rW;Boٸ4s[JtT\I5%X9$rDvZ eIEVáOmna]U'HHD +0t鍻4$0l 0"D[l't UЩ3ގƈȕ|Aќ֒M!W]d|c\+N.2rJHr̠e B-P/1h2)Q4EX+TF5l)ԧqnlC x3N.d!Wh΅GЍWuZ9OEye*o#VU1exN\EL=f% r&{dJ - Q͚49ͽ"a>*ktˤf2Lpݴ=Eex8 3\B|Z-dV|l66"Gڹ7*%.LZwASZtuA=7ٕl.Y/a7s\j5IH[2I@f=0vl z]$,Ni=>RvTQ(qή5\*t,s.~wzIpj5IrM[g˶ SZԗ.L8Pvv29ޅ 6J #a Lu$IwݳDVE>{ԓ8>f8%`TcIn$(Qv!bs}S]J'I,pej&Λ`b:qgC;k'e%(ݰpọ̆=76wʵQK⺨no7xݢf~,v9zE#۾9?AVE"RRI17o[KI7bsuL'4j|Ѧ,^G>͕=YAHYu Cῷ7BPfUzrWʧi- p 1w{ʂ#ϴ[0: kE fYFU :+$6Y͆"%h">Qja _ɛg՞%Sz!3FL% or 5>[OFH#CȢD%ls'4ϺYKϝIꠎF͠' )küj©)q/ nQ]Zl3{" +NR +;'RަF ^BYf9 =L3ko FP& umQ*d̿AWcuu2ǫ]aN3;qٸZeͺ rMb cM6 rQZ"\Nt(sIN8A';9c"Ί{`cbGǟ-vOT :,9qe:W4wae $_jAxtaȮuMf^q8f5G-MBl`Yvy|n-^!d'ژqE'?ޚ4`KN n2-52O+a i)S>}ڧ[V`ɞG8U!H̨6^}y~%01ab5%]JnNϞJP3Uˍ,mv-̡/\>_YߓҩI*ebM3.rR`uKB.~ IHY<)G'iRp uI^oY^؈Z#.;9we+^9}a.wEHC3)lfTP\~H[P~WhqQ܇"41 L8;Rfa}|3&PA^aq}i!4e/Xb倮RG(k 9LRj15@"h!q'>.]!o$C3B<%o܁^gR"_ _+nE9G RtR mꂅX[yv_QWHEh:oThMbvd?aE ?;DmTuAFUNGDj7"nzjܸkE>-Hyi$D&m~[lscYn܇֞Kaz<ӍvE+sLy zZ Z5\8rqr*ȪeA}ԈV+L"(y3D$>! T`R'N ('ejrɋHQri RS tUxNV0ٟђJ]՘gʑX*i%CqLh;pr=<0y}<8R2ί_`Zw-)D 2k =8!oex] 1) ~q(cMqNF-Ro4[N@M.^7C :t[t@F5r-zhfX# >E,fgBa`kg]ɸz,:!;ٴFbJ,dkA-"Ա**^aV԰ڇ-WWD6gN5#Uz֓%T*:9"O`9ˉB5KS5Q]pjlh# t\maӄ9_n#(ʒj&pO}<{[0]L>Fn|QӠdF_}rl' yJ-f\ ^VXCK2P>Ȃ'8D Є5C-.o7yrûn_FhV\l'o,B<$0߉#?"A]}6lœD^]Kr*=΄56UU; Ip.\_IEE$ga9㸙0}:- +E"˚2 ib!*%#BaLCk^JLbHy|͝,v\rWES,у%]]@5@oRdWx#;ZŦr%z8SfG8%#U!Í̏j$O Q_ Z7"3ry% tIfX;NG>Y6 pYЇ{gEzi4%-$ -I0m6D|N pR>ǔ]QEJ=M&!XhtЮ}d̼֕kf% ?%uGzr$CA Ar~ܩW5^3r@OҞI3K1պG1n ~#k܈Fwr 2IfbBEPU m5uF1M+vTڿݱR#|4UhfdfbIcFԬ0}ŻGy"r3yS6t|vpkn˺_ W}KS"XY =_Sʤi#Δ۱PMM){%F4jTG#Xݻ=Lκakʬ*뜦?pe:El"J[ǃ4r$@-3!i KuB cnʾXܦ5BGLfSTL;U4UIpG'ޏPH$SUfUSXܥ$qoR;69Ms>Ԑ(o(jSg3L]E;s`y!vWzFx[$R5SLMu(㍄YmoY^ki5RRɈ*8m G.VIz JF˽u%3Cn$瓓kgYh)M2/\!Y]3#_e{DD 6 cjGD?/SI 8ވ;%EѼ򍚓PfS͔zDFω=f& Z8Dn;؞IBa&;&F_4ofuhSW]_>zT8ugAԛW5tU(X*ZnoI.aG&)ϬSer䜽 $ݸ-ڢ3sPx2~1ׅ$PoPz=_No/L3JsmUb@PqQ%)k.ub7=, =Rp=@iqN) |t,w)c/$f[w[uNݜϬ9M,B 2+irIÑ]sJL wNo-wD- 0]qũg!LQwrM+{40fB 'Z MΕlغ0u5*˛z֦C@Rtn&]IDhh!5;';S62i>ƨ7 Xf)K4ȍhM0m<> *(wth1Րy5SYw$`,Y)ϲ*m LڱHx< K+OmXASN[ĉ_Pܬ B:ܿ(VzЗ*0Ԓ ҥf)㇄" Ÿ<M]^U&u]xMTT--Lz1@; 2g@# Au2rV>Gx)*^J͘{y8P_:k-6k+Haix}|[X߻G>|K[+қ|~37ݔ MPtkqaZӜp IȆ ߛzOC#-L۷""!YgxPٖ5(:UE,.{v`( L #MhMẉTU,7N4XcraL]1L1uGz]9LF`"ꈞs#M_L+9(/w3=zao& Vt"Fogؓf >H< k{bp 0>U T7xSlC+"u/w-g֕Mh eOmJo ,o{bl4RG@tؒ<ҹ,G9fxNC Z9WLӷGԔrд+ʩT~]T$| Ny ֱA@jfE˅V^k&keͺYlGloi{noj氓]oi#"znViy^MJ%r,CgFb?=u^oh/ ,*z@j5^0I%a(֎rYD:Y0ҫ7 yôGǴg0#= @\$0cRYOք.D/\HHUF\DU$HڠQ9ZfIjrE3_bݦS qfG<ϸ%(e:i"?|xO'ydD}3ʭ{^DePOő Oqԇx#e-IA:D@.:Ɗ:c鬫OjJ? y)}bN.+XpLZp_j`$ᖃVĕC {tƽ8CzAo# EgI[q|u;®w;ao-ZYޱӡG  wUBz`УTcab%zstFDu]A2a\7E?4] jD&`CAr ]=z%*gJR-~$&pca|ӓ#qSks&2Ysk Ze4-F&wD*JLµD;U:o[n$G$of:dDIF+4lqꭆ2gۈ xY` u`= E8YԉfqόLunLܩq Ŗ $_,r}\k̸AƳkn0 lzM69sk&3yu|<uz:rVo9Ϯ zm U'uغ$o~dol"d'cn%Tz|\>BWnkH X 734Mɢ/? 0j]Z(E9?MoyqdD=ZN/|ἶdC4 ƹ{y/3xlx:1y4iI#LSPeWY H9U pI6ѡZ~}c=Hpz,RWjɧ~4{ӁY!Zjb"T>F "* `V55=(_Ց_w1H#${z!|1k4B+o3Ws|J.ǭ1!3%p$ &Â4RZ(wn{t֐zKO]=̧˵klyemAi%--)Gix$a1;YsH^/2RDzȠ8VԒ*|1LT)LV;/KP4P068-3#,|Mu~ӏJ@K1>,؟U@F="fwPw#*k[43矓݀I׈(b%ȘY^ >jO!w:׏Di|4Zd4s!3l1b\X2p ו_{!i C^-'NBE0 zFz3C|c$"蜋/O ,ņ{DkOvCYѶ/K3j klz r( EN*(Ɍ,.ENy=ZFAܝμWB\r ,wQ.pè|Ppj7!2"Ƴ, AЌCUx" n9[p`8m}yzG*q}|2 ~#N@Sms2`k&8وՅD;6s?m3e/wFX>T\JtGW"IvHQh8fqM>9D;lpC7J֞8\3e_:I# ۤHY) >.)ub،2d*JBpxU<~_O'EJU%x&tԿ~QY/ƯILT~2Kw/)Htofs_=P^ӕ CXu圄hHDzh2-BѬ xK$4i#mM~MO~-z chHwYQV?dPLAG9b)vԬ#RK#܀!q.?V8p_TQސ5/Q3zjڵ[ 48zV;2`;[!#unV).G~sKwn0,R9-}tsQRF<X&0!1kKYQSNS S➿mȣYPy.5fr5 >nEB' XxJՓ3H-B6 L%҇&զ} D7DBn)L{zVT̜ҍk*2 Q[96KC@o- DK`y- EXy ԡv>t4ocmڟyӐ8ECÎew9DsZ0S|>WZuyv݊3"VYN^uBlN/+1\6nRtEEuqC?[r~倧kz⬰* fQ`Oo94 n^DREzfp ,/<] bdα]SD.>Lx/!N/874Ȅ\#$XA&&:r7t7 q]7 㖷=[D'5<1ҁwVDWq@:hC d58f_ߨ6R/A2:4ag=쏕8]-GZ<<٫(YJtei)z[ On(}e~ҥn9΄Qa57wCÀ9Xθb -alN& }삇"u`OL!jy+1 :,!5jH ?GGݎ$6ռZ}ޡ) Cpm+ae^GA_= 2W2bna+HbrNM#ۀwSVZ(of`^zf(uuWb?"H&(x?bø. jNdGSu#Jx -Ju|$=-v/"TdM.rО=īAm 7mIZCtS&uNMt; h, QU L }DU.srOo NĔq2at`T[ofV#Y*q%DneC!38Ajg=n8%Sc<[޻١ +"kGYo (/Yd#g뻖.\Uw^_:],2ar6HݱAdGV^%Tr|!"cap#E'GK0,L44E݆^S8 r]踙:e|9!nxӄiQT.E͵L=AY/>/r;w%ڣ9_ܾI CT6j*ӄ5TH&Pu㋈2R#]>D*j.njL Ƣ}MK}l=.q;ZJg({!@cEE^kxc aVq֮1s@ ;>92=N-vnx<5Gr3cӫm)s\ W^+$nqE%E /bde5߲{*1~^g.{#rO" g4`:vmQd0Ÿj<*T ˊY٠0pt~AAVGht8RQq)a;p0-jϋzu%Ik/іRQԦc;w3٨Ax\yRyc$5A= J4O9HpPDmk>*Yy}h5+jUk)qGG,Sqڐ{fo(%PූY{[*'$PTq5rk-z=Ek4dhxgW^>֟ J7㓁@SF.6}JM\~^Q(f5K9S;+&& IK$8g`hFsܜXet|Oڕd;ɻe&%3ts؈PZKb*R50w`h IJʣrSͩ{9SjDif9 j7ȭbqJ~WM Wr<=]q}CYbyӡ`}Hy%B$AEkBi$YA~@y4>zK8@dm`Bn=pY\Nx ,1g2D=Th*Y6Xnħ).Ӝ̓Xz$j¡ Һ $qR е61f  -xh%jClBEB`&lWu{FT"tқMaΨ9sM,V&UUZw>tf |Hy& [gKɅ?N ٪ގȣqtnÆ]-ꈧ+拠c>(w@خ`kxXeƽ,΢ןXNDHODSJ*7"&D_HZs_XYtį5fn=I3E+F bUUNʹfKW!jS#;YQXgǭ"XfH.QN 'uFQD M#Ѱa}X̣;ՔJ(D#.^){@/>67 \L<(+6Of)[W~(@Ь]j.ZDžЃqÝFLl{J-7۝e@e[IDZ2-K# \/_YIj**'0}'iźآwTs>Iמ *-4P+ 8 )YevIgIC{:)mOf(5Ue>LZ*ekf^ZB*y5ۥ?>:S00yb7CЌԱm '{nD- J@CJҨYr`,J*`:uvsh!MfO}XXjʪ >Xlv?,qC۹:k]:Df),П(NʷU|Qmq!q=8u[U)MAS.' \x1|HQʂ>: V@ $Pw"PkU 2)S &Ppe xrG\KQk%Tf)  +kcF4k(qi\).C Aiw6rW2ҡIǓ j6^Žﺵ@sϠy": 9BJ6N4s) 3hQaQGm$bX1ER{H~ ȓWRvE'*w%GXձa H=ӥjmAJ#= 2 `g0V&Ƴ썼L5z3B%I=>*ؔt mYX D -gh347r[FvZ@ /aFrӾ[1]4LX2lq. s~gS{=gz0j¤%`˒ "Ŧ}zaU]zE#I7+hY7؍qP:K6j 6Q/-(,2^l7'p(bdҷTMZVz~TeDxrGxF=kpJNE>pKDOgtKEe ܝe kWu3"2a!>喎0K]C7q Z~|"W$=%ּoz:L5*(ږW j/#OJ!ZuLuS$A4,h$YOQrڭ΍k䆦JQ lg<0Mۣ&qUhGٱZߥ Nn7V!lwFf{onLx.&@kIs}GpnV$Uù4|u¬e)m/b+yJv_Y/}AAk^FeE܈~/č:7&'烗9DI@U:όUq<]w4 8(9Qx)5_ e&TmTcO&:aɷTWPK6FS4%LOs!kʊ|pL%_Xsk$2,9R7/?tzk&Lj%6rМGě(j~L!S1KᏲa:wŞÕN~L#AaL2~Ah@56ŒP+DžUF׬$?t,jIK-NZ{,Ю׼[?Ί.iJ"]Xqpqnb2tֽw_Ѧb{X/kr%<.NEY&5̛1]qf@>C\Pң=%o3CPK-xLyҎ%^sV-йP$$=LNiֶs]C)[ZFsV1A:2T,QoQp*Qvӵ,شSo"AW|Lifo/uX1IuG."o +$3dNj5,ʟdcygM5U,aUȰE=a 5obvn+՞b$g4 "jr8:3MZl Q -~i{sQSrZ& ZR2J?6>I-]?+z0/ jA IDAT!ɝmeܕ։BtB@J#-( B0sR&!fk12G sT}\4ٽӣgՌXK =pn˰ֆr#STn z^yvOs_Ib-yS)2e-uBIߠv#2kU!^ \>84ݶ2_Jiwi^{Wjz ڈˣao#ڦla A_WϲfBc̘⇌j=R<0$gp?tE3"4lX2WyMq[D@TսXn5ɐƬD2̪zвe>- n-"#)%yckjeUcY_𹗗&eJvb41*e'; ae,QtoPND\I`F%?a2Xre|gxoυ:.#`U."rߒGQ0Rr#zc!|y~xYr|] _vC"e ,F}yz&)8x]ӎwѐY'I'$o}{R#dD g"HpRW @K)AM~@ד7^)/n⒪HZ8%]cmH$SNfGD) NMc ܻ֯@Rh Amz͂i5>Aٳ86l/dA.>i+cf~pGdZm5{"juwa5K-OAv@\SxnjΦ/(l&E 73G IݷH 8R8~~xG咊#^s.c@()J4'^}K.\w*:Wv}'/9m~XSѴeeJ|:;OOqC[\>BIq(˫'M'27H]|4"=ijʰZ=4﬈R5 ;!FÊP/L/nsij=\Rē,Yl鞣Cwi4Ю.ӳ(G%>v.?7ą~b])BGċH1|Z~eTufi7JMĊ cHؘ&8xsTt9F{7eEȶA&aZ˅DXn5M*, G2'dc!+h`β:vxY(nNý"Cw$-m^8Ɖ۝%~%>y Ek=rB5Buq'k@$Gԝ|{l7XxA[%E%Zֿ٪h]5&pG茄.6_7`:Pɔb[:`}4cneb?1|VCDw R_PvoSʢؖÓ@^bD7TH'NH cHD=YƇ G-E?xڅlG`CG*o{VjDfSV/w}$R M 2PUCs(%GZT^ º+?05+<̃E9Z~n `s ȰQ/dm >8R T \ȅk8X?evI=!RC$%fInw]d\f6f$*''QsT/lqѻ1;l" tY&g:FNg"5`#1dIR]o]r?WCAGs;Ȇ!mg{yn{?foD/6|'xF,p|J`LPF몽_7{*fF)t2dK?~ƭ/<-:O?:fv:gCjwQpp$MT't 2e 7G|ܮϝ& :HrPR9{ųG y*Cu(8 (Ȩ2zVN;3X C_ 5ܳ'uJoT"Ǫ3)*9+qj0fL\gOf|?\ֿt۵NV Ĝ9d n_2:u0~ !<㧄&Zl[Mpm6h0RA뒧vmj=%9b,* 3s$PqI4 J26+[)=5Vk1Ng_u6.qR.\!uW%!˲B 3\gʪq%2Ԋ&"s5?0ɣGxi:6qk4!(B莋%S >w/vTd<ڱzIX$gϊ1LK+BYTfbSS0t%j3rM`R=Gƾ)_k, 2~XƸgt0-U=C?Kr~C5MV`N* 38WZ "A/OT̯ r>+ /)OJ\?>}x/M(c^l h?Dx(Uh0tm6i'y(J8HYA2u$E* =h`*V4Oߦ_r$7I`kioMGՙ9taҽnIFǥbեYZ=`8M[nYut +^Z8znW.P4~6Ἰo-Ԩ/w }TπtpPkV*OtZ޹,v뿽"BcZ6Ө-B\->ڵXFxSx.% X;Fk925a+O;JyMv.Li dP)3*~hiDTYKJU+V/שj8+k$<^S*.2JZ'SX +D|VюhB r]>?*mGkapXGDpb[q^_˭^SI|Sq/Izh:@7 %hG&%{0݃oyg͢vGSLdNU ;!,u Ji6VE(mҌNƘf|t|ۅz5VUQfwӆ$V5k&?ߗ ܶi0; RܝcKVY!pȻ7S۠bv2%Qz<ãxR9i[ejBmE҂^Sug,(48,NVIg[q&8Q:EzHk\a.?S}<5#7y&jh/ BgWƅ#7˧;PG"ȭ5xCRӆC}r祴5F|?I/A7A1S8Nfp H'ﺲ_0va:RPמkbU39uytC-::y!N' {~u=;tR9rPU^O\ !MQ“ӘuA෻Kbf GM:1-R7箙"n}y65Sݜ>9﯁gty!r@p 8VK yB M#b g^ 7=ObA" #,E0K r wH8ߩ5Wg<ɜq!*J_V0=!C5SMF?(˨c0ET6YKB(lJ]<[ 1ZWcpr/ln\6옆cB\{B  E-Oo]FX!@ ^.mw6d:)OAZةCU![J, ޒi'YǼyZrzZn lC.#J,]v9) }i+@A|L0-6(D0JhG< +RP A xٺd*OwF~rwye{ghwsͩ]I IDAT@x!&6 +)"z|z-ez [ߤoƫ4:o"XbM4 2=ޝReV@BN#;Jb 6U_1S{HO4q˿ЩB.bce Xa3b>tu[^Lz6cj mҦ hXV`)\CVFj<0*T\o&[w{?LbD-2Zw%Oik]48:㲕:d"Grlt9W&*!$,i-1Tq,|!T> r9Tr(%wyb)5*Xɓϣխw?;u)d*`V|XIR94s|9l-~.EwFV9@.vo_Oc5#Q$s8 fJ`nF#"p^TZw1TȯzI?(6 m. 焁P }چ1̆$C%W0OtpB^MҲg^K F?J+mmM\^j4S<A/'n8N>e?G/mMxu2Bc װWg S>M&si 7*v/ɺҶ,Q&Avtf1uQAip"VC#q:OYa l.4w'C"ittwd`'4o:X}b@i#q; ZIҀAί:6Kc:)d~?LǺҒ7k꽁ੀD`L0C)mSe̶nE|ͳx:2]z7Ƒ[a+$ ǿG?KY㠧8'5%ȉF-iy'A>lE qq+!?bt2ݛ6SgH"JY{N-'b!2jڳꢁlEB;4w-0ZM0'K=x*e ާLvDgy /.)RUd]g-`7ᆆyZH]4*z|4h͌Nr=>r*M_ qセ&}%&!^Dvsoݸyg¢w]~2N ܮliA!*Z/PЮ1示s:6a o,Ȁ.Q#ͪ35{_.IA NivZ-b s-7r/s`wu 1@}Jh_EYO/ a3X3Gޮ]Mml"u)6z,m &9Xe˶j;2'@$<{Cv܅(<ҁc\edϒ꺒mӰHv%JîQ2DI%?042/xͰaInW1R(^gO?Bh 剏cFrʎ ]W ‘,jwO~ AXBs\0g>sFJ&^(OgjaUg27wTػsSR}߅-@"=ԭ,|Q-XAƃB 'CPEu,2‹Xlj-Z9m2q>dMP)TvkDk q/lZj"#_Y;?yr^Q\.Il^ï"V2Ѳl? !߅}{ߵB˜ZĖ TsN 6̺ DtOnbAt֌}* n$ (8~]kΰK!&D! #DBܭ=*8E{ˊ1 :r&^<.%SmkzIfRa`:W%'`{O!cjgW7V-g.k4q5`j6.?xngo,,~3PТum'/VZUpQnj$j@;=]1\lm5vY z%.#j 'U9{޽RˊF!]W1j/b́04U|""[S$ʁ|Q: 'SSnsR79z%Hբj\D Rvwx+CS|TY4b1~O{a{ j{_2meykʹIx}wGظ@iǧ*%QESCY|\ ;+#r9 OQ,t <BZR.Q_rUUN89%ɓ5Jf(18w|2[M&?tSべS߬W4lj˜'\`u+se=Ƨ='9\, O'yPb2%ʎފCgZN\~OIA>I<`OPXkYmf^0, ,K÷@#팥)=YfX1$eo0("> L߽bդc#u>%Ns(=JjGT~06213 k0B־;ٝZTvZ?`_H75U1tSIiuy6yc.j x ]TY L&2u''pSUƉ9~1ʮ`ÎQIwt #RODC"Ҁ5o;ʘU@pܸ!tVeWY2/%ynC8Jm`Q(mu'~fw.hp g7 9'o/gk%M,c"Vb]c.HXbtQ6HIE1Fn2Ȥ2H_+ ^J=,F/8e*BiTfy?8qv@zAkC'O5H/_0MzPkduPKն*2Nb!w7|a>Ol&\)poG؝|ܘ"Y*b?+@{/o)WUh~4Z1%[P LnM!mUڼl EL,\/AZ9!]x`+Wb+jLbiU-JOMJ{Ut'tV\,9 jw?zE ?8YDjꝼOK3VH X41ץldoCLG"`>R eO(@4LxhJĖy:PϐL*E4?E#xz+&..)H}Iv?Wz8m״0jZ^삯ѣWN~>@كJ#}vKR<;<),J7f n"e鷚5|$әH؞ˏ].b +vae/?»([Z϶$3ވwS$qM]MJSFs-|~dӔb@̙+b\`o o:lQ=ފ*R5B/4; t+$=s c4 )s hԸ@e'QlB\+6ΨE[?PB1p Ut^\iT(4r@>x*Tg%wzkNAN4IzVJsX:q͵%?tJnC8,g4xM/Tn/,N BU<'^UIlz453"G>:(.s @K@NR1eNx恂"ϒ }Oݶ*6٪F&;?[ϘϓcuC_h؎YUTʸzS' LƮiU7 5OEJE[z՜]]wnj y{Z4{@ (k;dxQۗ;Ĵ]:VˤֳHAMv ,2鼭>/~D6ƶ&xkZQKVkHZnxq8Z'*8%ʸQhy.ć'$)ĒN* :I-dЎdB+BX^ݼ)>*?! Gք|=(%Xۣ%a$aJl` OiSQ@_]YO ZVgw}{;'5sd&k8D-jwغpd 7WKq'vN G1znC)UWHSʂL0sn۞H)-5nZ/e* 3P][e6{1!r?C5 ލ6a,*)|2˨4uQ )m8>7bƩI̵ 7"/ߓa9uKas{ݖjfLnኺwIo8L`)nܰ801cuVu!SK#[`G4ZCB1le,/7(\%Z\d/j͘b0gH&K+g5ܡ} %f3(9654&VK`?ݤVӖF~P~ Lu2w97S݁l2_9!O\3NҬL8ٝ]:& 3z1qO< ybBgjȋ$fsB%pU`AJr:;x؟-$ aP3.l5͜S2'ɆVGIkO*AZwcP^r}n[v tSSLLݽ ;&"2|Y 9hs̭XY[ lnXǽyswo;5؀7Br+\oATJDcJ8^kc=N|f^; Z)CnjSKfzop1ͺc-c n*#.ȡÏn9-@Y)3-ئ/O&q27lBty+y}n^UO/?K[E]J-gJVcL55xIW$aAtW"G:ox68,:B#ӯ0,`NS] ~SSݲek yx!+ъj)z9Ðf)B S0Y)~Qw'BuCS? ݓiůvYyz /8L~q hCH~mU3Y{ŽuZ޶1kcfsuSյa;!HFO6z P9g%0jLp}>ئ؅3*M:>J'!Yt99l@ }ć{R[iԬ{5;&5|GwvY1y2Q؍P^Bu&6^FСբ84iSvr@:]^Υ=v׷hZx 5 hMʇ;xB/ E2[zUա> v[N':Gh$r?K&Xo~LL?oS b6pXKclzҺͮ8Aδ[ߺ Ӈg"D<}2B;cA58,A/jW>)\,HB&Wį)Q2! FtF(Y(z_ HUzל#?Ɯe/{we^ rCDAwBqC%יUiIwHnGB8@mbR].?%sQfp#@k.s&,;mԩO&#;_XB1au'璮TzbeCv^_9K'&`~7.i#B!YEy1;Tz 7m\nE1{ĺ`hb!Sŵ繻ޣT <,|ɨ@e>2 lꪧ˯g5qOZVgHP7*/Muc}+Ejs7è5NCΞ2tM729d ?)m饕slb@FP6oCV{P OݣjW0S~z1 0W-=FA5 rݨU`_J_Mm@K094-NQZSÞS2$DPhbh{Q xbT;V/Z&