C22212323232133313113313331333132313331323132322221212231322113211   >>    C2221232323213331311331333133313231333132313232222121223132211321   <<    C22212323232133313113313331333132313331323132322221212231322113213   >>      C22212323232133313113313331333132313331323132322221212231322113212   >>