C111123313121111121111331333133313331323231333133313331333131133133112331313311   >>    C11112331312111112111133133313331333132323133313331333133313113313311233131331   <<    C111123313121111121111331333133313331323231333133313331333131133133112331313313   >>      C111123313121111121111331333133313331323231333133313331333131133133112331313312   >>