C11111333133313232233133313331333133112111112113313331311331313312331323123221   >>    C1111133313331323223313331333133313311211111211331333131133131331233132312322   <<    C11111333133313232233133313331333133112111112113313331311331313312331323123223   >>      C11111333133313232233133313331333133112111112113313331311331313312331323123222   >>