C1231321123223331211111131211113313331333132313331333232232113121212231   >>    C123132112322333121111113121111331333133313231333133323223211312121223   <<    C1231321123223331211111131211113313331333132313331333232232113121212233   >>      C1231321123223331211111131211113313331333132313331333232232113121212232   >>