eBGDAE1=125442345678910111213141516let ringlet ringlet ringlet ringlet ring1743(X)182(X)2(X)12119(3)20let ringlet ringlet ringlet ringlet ring2143(X)222(X)2(X)12123(3)24let ringlet ringlet ringlet ringlet ring2543(X)262(X)2(X)12127(3)28let ringlet ringlet ringlet ringlet ring2943(X)302(X)2(X)12131(3)let ringlet ring323333324424234433let ringlet ring352424236437244242let ringlet ringlet ringlet ring384339242434024243let ringlet ring41(4)424344454647484943(X)let ringlet ringlet ring502(X)2(X)12151(3)52