C11112331312111112111133133313331333132322121111331322133313222332311   >>    C1111233131211111211113313331333133313232212111133132213331322233231   <<    C11112331312111112111133133313331333132322121111331322133313222332313   >>      C11112331312111112111133133313331333132322121111331322133313222332312   >>