C11111333133313232233133313331333133313331311331333133313123132311   >>    C1111133313331323223313331333133313331333131133133313331312313231   <<    C11111333133313232233133313331333133313331311331333133313123132313   >>      C11111333133313232233133313331333133313331311331333133313123132312   >>