C1231321123223331211111131211113313331333132313332323232231222132331   >>    C123132112322333121111113121111331333133313231333232323223122213233   <<    C1231321123223331211111131211113313331333132313332323232231222132333   >>      C1231321123223331211111131211113313331333132313332323232231222132332   >>