C111123313121111121111331333133313331323231333133313331333131232313232233231   >>    C11112331312111112111133133313331333132323133313331333133313123231323223323   <<    C111123313121111121111331333133313331323231333133313331333131232313232233233   >>      C111123313121111121111331333133313331323231333133313331333131232313232233232   >>