C11111333133313232233133313331333132313331311331311331323223311   >>    C1111133313331323223313331333133313231333131133131133132322331   <<    C11111333133313232233133313331333132313331311331311331323223313   >>      C11111333133313232233133313331333132313331311331311331323223312   >>