C123132112322333121111113121111331333133313231333222331213223232331   >>    C12313211232233312111111312111133133313331323133322233121322323233   <<    C123132112322333121111113121111331333133313231333222331213223232333   >>      C123132112322333121111113121111331333133313231333222331213223232332   >>