C11111333133313232233133313331333132313331323321313331311331333132213231321   >>    C1111133313331323223313331333133313231333132332131333131133133313221323132   <<    C11111333133313232233133313331333132313331323321313331311331333132213231323   >>      C11111333133313232233133313331333132313331323321313331311331333132213231322   >>