C2221333133313331311233132313331333133313331311233132313331333231322121   >>    C222133313331333131123313231333133313331333131123313231333133323132212   <<    C2221333133313331311233132313331333133313331311233132313331333231322123   >>      C2221333133313331311233132313331333133313331311233132313331333231322122   >>