C11112331312111112111133133313331333132323133313331333131123331231   >>    C1111233131211111211113313331333133313232313331333133313112333123   <<    C11112331312111112111133133313331333132323133313331333131123331233   >>      C11112331312111112111133133313331333132323133313331333131123331232   >>