C11112331312111112111133133313331333133313223223313121111133323131221   >>    C1111233131211111211113313331333133313331322322331312111113332313122   <<    C11112331312111112111133133313331333133313223223313121111133323131223   >>      C11112331312111112111133133313331333133313223223313121111133323131222   >>