C2221232323213331311331333133313231333132313231333113221211311231   >>    C222123232321333131133133313331323133313231323133311322121131123   <<    C2221232323213331311331333133313231333132313231333113221211311233   >>      C2221232323213331311331333133313231333132313231333113221211311232   >>