C11111333133313232233133313331333133313331311331333133313121111112131   >>    C1111133313331323223313331333133313331333131133133313331312111111213   <<    C11111333133313232233133313331333133313331311331333133313121111112133   >>      C11111333133313232233133313331333133313331311331333133313121111112132   >>