C11111333133313232233133313331333132313331323321313331311331333131121212131   >>    C1111133313331323223313331333133313231333132332131333131133133313112121213   <<    C11111333133313232233133313331333132313331323321313331311331333131121212133   >>      C11111333133313232233133313331333132313331323321313331311331333131121212132   >>