C123132112322333121111113121111331333133313231333133312133332132321322121221   >>    C12313211232233312111111312111133133313331323133313331213333213232132212122   <<    C123132112322333121111113121111331333133313231333133312133332132321322121223   >>      C123132112322333121111113121111331333133313231333133312133332132321322121222   >>