C11111333133313232233133313331333133112111112113313331333221323321211   >>    C1111133313331323223313331333133313311211111211331333133322132332121   <<    C11111333133313232233133313331333133112111112113313331333221323321213   >>      C11111333133313232233133313331333133112111112113313331333221323321212   >>