C123132112322333121111113121111331333133313232213121322132311233211   >>    C12313211232233312111111312111133133313331323221312132213231123321   <<    C123132112322333121111113121111331333133313232213121322132311233213   >>      C123132112322333121111113121111331333133313232213121322132311233212   >>