C22212323232133313113313331333132313331323132313331132213113211231   >>    C2221232323213331311331333133313231333132313231333113221311321123   <<    C22212323232133313113313331333132313331323132313331132213113211233   >>      C22212323232133313113313331333132313331323132313331132213113211232   >>