C11111333133313232233133313331333132313331323321313331333131211111323333311211   >>    C1111133313331323223313331333133313231333132332131333133313121111132333331121   <<    C11111333133313232233133313331333132313331323321313331333131211111323333311213   >>      C11111333133313232233133313331333132313331323321313331333131211111323333311212   >>