C111123313121111121111331333133313331333131322113121111131133132323221211   >>    C11112331312111112111133133313331333133313132211312111113113313232322121   <<    C111123313121111121111331333133313331333131322113121111131133132323221213   >>      C111123313121111121111331333133313331333131322113121111131133132323221212   >>