C11111333133313232233133313331333132313331323321313331323231323131111   >>    C1111133313331323223313331333133313231333132332131333132323132313111   <<    C11111333133313232233133313331333132313331323321313331323231323131113   >>      C11111333133313232233133313331333132313331323321313331323231323131112   >>