C11111333133313232233133313331333133313221333133313231311112111   >>    C1111133313331323223313331333133313331322133313331323131111211   <<    C11111333133313232233133313331333133313221333133313231311112113   >>      C11111333133313232233133313331333133313221333133313231311112112   >>