C111123313121111121111331333133313331333131233133313221311112111   >>    C11112331312111112111133133313331333133313123313331322131111211   <<    C111123313121111121111331333133313331333131233133313221311112113   >>      C111123313121111121111331333133313331333131233133313221311112112   >>