C111123313121111121111331333133313331333131322113121111332233313111   >>    C11112331312111112111133133313331333133313132211312111133223331311   <<    C111123313121111121111331333133313331333131322113121111332233313113   >>      C111123313121111121111331333133313331333131322113121111332233313112   >>