C3123121111113313121111331333133313223313121111121111331211331323231322331   >>    C312312111111331312111133133313331322331312111112111133121133132323132233   <<    C3123121111113313121111331333133313223313121111121111331211331323231322333   >>      C3123121111113313121111331333133313223313121111121111331211331323231322332   >>