C111123313121111121111331333133313331333133313331333133312111133131323221311   >>    C11112331312111112111133133313331333133313331333133313331211113313132322131   <<    C111123313121111121111331333133313331333133313331333133312111133131323221313   >>      C111123313121111121111331333133313331333133313331333133312111133131323221312   >>