C111123313121111121111331333133313331323231333133313331313313312121   >>    C11112331312111112111133133313331333132323133313331333131331331212   <<    C111123313121111121111331333133313331323231333133313331313313312123   >>      C111123313121111121111331333133313331323231333133313331313313312122   >>