C11111333133313232233133313331333133112111112113313331311331333132333122311   >>    C1111133313331323223313331333133313311211111211331333131133133313233312231   <<    C11111333133313232233133313331333133112111112113313331311331333132333122313   >>      C11111333133313232233133313331333133112111112113313331311331333132333122312   >>