C123132112322333121111113121111331333133313233213123132231322211   >>    C12313211232233312111111312111133133313331323321312313223132221   <<    C123132112322333121111113121111331333133313233213123132231322213   >>      C123132112322333121111113121111331333133313233213123132231322212   >>