C11112331312111112111133133313331333133313223223313231333131131212231   >>    C1111233131211111211113313331333133313331322322331323133313113121223   <<    C11112331312111112111133133313331333133313223223313231333131131212233   >>      C11112331312111112111133133313331333133313223223313231333131131212232   >>