C111123313121111121111331333133313331333131233133313311232313232233133313331231   >>    C11112331312111112111133133313331333133313123313331331123231323223313331333123   <<    C111123313121111121111331333133313331333131233133313311232313232233133313331233   >>      C111123313121111121111331333133313331333131233133313311232313232233133313331232   >>