C11112331312111112111133133313331333132323213331333131332222231   >>    C1111233131211111211113313331333133313232321333133313133222223   <<    C11112331312111112111133133313331333132323213331333131332222233   >>      C11112331312111112111133133313331333132323213331333131332222232   >>