C11112331312111112111133133313331333133313331333133313331333132322233231311   >>    C1111233131211111211113313331333133313331333133313331333133313232223323131   <<    C11112331312111112111133133313331333133313331333133313331333132322233231313   >>      C11112331312111112111133133313331333133313331333133313331333132322233231312   >>