PNG  IHDRa* ۑ0PLTE@@@ftRNSS pHYsetEXtTitleInftyEditor MathImageytEXtAuthorAdministrator*xtEXtDescription $2^{n}z_{r+1}+y_{r+1} \equiv f(x_{r}, 2^{n}z_{r}+y_{r}) \equiv f(x_{r}, y_{r})+2^{n}z_{r} {\rm mod}2^{n+1}$JԇtEXtCopyrightInftyProject@$tEXtCreation Time r'rr'rr IDATxZ (6 H(p3-b 3*9t74NDs_[V:k&zUޟU7ORGK\r&Z/5^fRG=j{ÚhfR@ijETD0#_Iy̍6jn_*o_I-εỷ#F1&b1 DkӬD+] 7Ym֛juW*#6xbҕGEnnT-/1@y8ڄr"^q}]QN4fTbfhErOɯ)-irEZ6mMsK,z0+1Ω; ̮4'3ٍ^!h1VM0HPҋ@ʦ]oo:soCG-">`-wV4Vxp 1]ՙ=e9Иu=b>yסUz;] \f 2Eļ_{P&s3vT硰7=qDHo.};C1ѳp65#Rqm9?OH`/!ʽ`T>[s`[Uġ7CtiAWXڔ[Tڋ;̬ ed7b<8C_b3;9v1pwE&aPV}G*ۚ=_\" qu˚5nDue[:^8['^' t>e7~v+zlA;L[t •ˎU==M]11PSD'n+![vN@W4[G 'Wr( _vjĴnGuZ\ۏӵ BX _~wZ=bU6vKUfEt[UNZDNZDNZi LLmIENDB`