C11111333133313232233133313331333133313331323331333131122223131   >>    C1111133313331323223313331333133313331333132333133313112222313   <<    C11111333133313232233133313331333133313331323331333131122223133   >>      C11111333133313232233133313331333133313331323331333131122223132   >>