C22212323232133313113313331333132313331323132313331132232123121211   >>    C2221232323213331311331333133313231333132313231333113223212312121   <<    C22212323232133313113313331333132313331323132313331132232123121213   >>      C22212323232133313113313331333132313331323132313331132232123121212   >>