C11112331312111112111133132313331333133313232212111133133112113313222231   >>    C1111233131211111211113313231333133313331323221211113313311211331322223   <<    C11112331312111112111133132313331333133313232212111133133112113313222233   >>      C11112331312111112111133132313331333133313232212111133133112113313222232   >>