C111112111133131121133133313331333133313331323133313331333133313223233231311   >>    C11111211113313112113313331333133313331333132313331333133313331322323323131   <<    C111112111133131121133133313331333133313331323133313331333133313223233231313   >>      C111112111133131121133133313331333133313331323133313331333133313223233231312   >>