C1231321123223331211111131211113313331333132313332323232211233221   >>    C123132112322333121111113121111331333133313231333232323221123322   <<    C1231321123223331211111131211113313331333132313332323232211233223   >>      C1231321123223331211111131211113313331333132313332323232211233222   >>