C1231321123223331211111131211113313331333132313332313221321321121   >>    C123132112322333121111113121111331333133313231333231322132132112   <<    C1231321123223331211111131211113313331333132313332313221321321123   >>      C1231321123223331211111131211113313331333132313332313221321321122   >>