C11111333133313232233133313331333133313331312111133133313231311111   >>    C1111133313331323223313331333133313331333131211113313331323131111   <<    C11111333133313232233133313331333133313331312111133133313231311113   >>      C11111333133313232233133313331333133313331312111133133313231311112   >>