C11111333133313232233133313331333133313221333133313232213331313311   >>    C1111133313331323223313331333133313331322133313331323221333131331   <<    C11111333133313232233133313331333133313221333133313232213331313313   >>      C11111333133313232233133313331333133313221333133313232213331313312   >>