C1231321123223331211111131211113313331333132313332323232211222312231   >>    C123132112322333121111113121111331333133313231333232323221122231223   <<    C1231321123223331211111131211113313331333132313332323232211222312233   >>      C1231321123223331211111131211113313331333132313332323232211222312232   >>