C2221232323213331311331333133313231333132313231333113221232311331   >>    C222123232321333131133133313331323133313231323133311322123231133   <<    C2221232323213331311331333133313231333132313231333113221232311333   >>      C2221232323213331311331333133313231333132313231333113221232311332   >>