C2221232323213331311331333133313231333132313231333113223212323211231   >>    C222123232321333131133133313331323133313231323133311322321232321123   <<    C2221232323213331311331333133313231333132313231333113223212323211233   >>      C2221232323213331311331333133313231333132313231333113223212323211232   >>