C111123313121111121111331333133313331333133313331333133313331323323211221   >>    C11112331312111112111133133313331333133313331333133313331333132332321122   <<    C111123313121111121111331333133313331333133313331333133313331323323211223   >>      C111123313121111121111331333133313331333133313331333133313331323323211222   >>