C11112331312111112111133133313331333132323213311211111333132311211311   >>    C1111233131211111211113313331333133313232321331121111133313231121131   <<    C11112331312111112111133133313331333132323213311211111333132311211313   >>      C11112331312111112111133133313331333132323213311211111333132311211312   >>