C2221333133313331311233132313331333133313331322331121133131212121   >>    C222133313331333131123313231333133313331333132233112113313121212   <<    C2221333133313331311233132313331333133313331322331121133131212123   >>      C2221333133313331311233132313331333133313331322331121133131212122   >>