C11112331312111112111133133313331333132322121111331322332132311   >>    C1111233131211111211113313331333133313232212111133132233213231   <<    C11112331312111112111133133313331333132322121111331322332132313   >>      C11112331312111112111133133313331333132322121111331322332132312   >>