C123132112322333121111113121111331333133313233213123132211232331   >>    C12313211232233312111111312111133133313331323321312313221123233   <<    C123132112322333121111113121111331333133313233213123132211232333   >>      C123132112322333121111113121111331333133313233213123132211232332   >>