C111123313121111121111331333133313331333131322113121111331311331311331322233311   >>    C11112331312111112111133133313331333133313132211312111133131133131133132223331   <<    C111123313121111121111331333133313331333131322113121111331311331311331322233313   >>      C111123313121111121111331333133313331333131322113121111331311331311331322233312   >>