C2221232323213331311331333133313231333132313231333113221312112211   >>    C222123232321333131133133313331323133313231323133311322131211221   <<    C2221232323213331311331333133313231333132313231333113221312112213   >>      C2221232323213331311331333133313231333132313231333113221312112212   >>