C11111333133313232233133313331333132313331323321313331311331333131122112122131   >>    C1111133313331323223313331333133313231333132332131333131133133313112211212213   <<    C11111333133313232233133313331333132313331323321313331311331333131122112122133   >>      C11111333133313232233133313331333132313331323321313331311331333131122112122132   >>