C2221232323213331311331333133313231333132313231333113221231131212211   >>    C222123232321333131133133313331323133313231323133311322123113121221   <<    C2221232323213331311331333133313231333132313231333113221231131212213   >>      C2221232323213331311331333133313231333132313231333113221231131212212   >>