C123132112322333121111113121111331333133313231333133323223312122222113132211   >>    C12313211232233312111111312111133133313331323133313332322331212222211313221   <<    C123132112322333121111113121111331333133313231333133323223312122222113132213   >>      C123132112322333121111113121111331333133313231333133323223312122222113132212   >>