C11111333133313232233133313331333133313331311331333132313331333133313332211331   >>    C1111133313331323223313331333133313331333131133133313231333133313331333221133   <<    C11111333133313232233133313331333133313331311331333132313331333133313332211333   >>      C11111333133313232233133313331333133313331311331333132313331333133313332211332   >>