C11112331312111112111133133313331312111112111113331333133313232233231   >>    C1111233131211111211113313331333131211111211111333133313331323223323   <<    C11112331312111112111133133313331312111112111113331333133313232233233   >>      C11112331312111112111133133313331312111112111113331333133313232233232   >>