eBGDAElet ring1=115442Intro 1(2)3(4)(1)4(2)5(4)½42(4)42464424X272202208202202209442104let ringlet ring11424(1)12(2)21344244222044422let ring144242154(1)162(2)1764let ring18A441920212223242526B=115(2)27(4)(1)let ring28(2)29(4)½42(4)424304X24X2312X022032202202203344222034b4424424424424424423522022022022022022036220220220220220237442442220444222044238bii4424423922022040220220220414X26442A24443444546474849let ringlet ring5007full70767635175775527full5775757553577500575547let ring55756424577full58B2259(4)(1)let ring60(2)61(4)½42(4)424624X24X2632X0220let ringlet ring64202202206544266b2467424(1)let ringlet ring68(2)2694424422204442270bii22714(1)let ring72273C6474=115704475A - Outro767778798081826483