C11112331312111112111133133313331333133313223223313331331123123311231   >>    C1111233131211111211113313331333133313331322322331333133112312331123   <<    C11112331312111112111133133313331333133313223223313331331123123311233   >>      C11112331312111112111133133313331333133313223223313331331123123311232   >>