C11112331312111112111133132313331333133313232212111133133112111133133323132231   >>    C1111233131211111211113313231333133313331323221211113313311211113313332313223   <<    C11112331312111112111133132313331333133313232212111133133112111133133323132233   >>      C11112331312111112111133132313331333133313232212111133133112111133133323132232   >>