C123132112322333121111113121111331333133313231333133323223312122212233132331211   >>    C12313211232233312111111312111133133313331323133313332322331212221223313233121   <<    C123132112322333121111113121111331333133313231333133323223312122212233132331213   >>      C123132112322333121111113121111331333133313231333133323223312122212233132331212   >>