C11111333133313232233133313331333133313331312111133133312111112111133131331111   >>    C1111133313331323223313331333133313331333131211113313331211111211113313133111   <<    C11111333133313232233133313331333133313331312111133133312111112111133131331113   >>      C11111333133313232233133313331333133313331312111133133312111112111133131331112   >>