C2221232323213331311331333133313231333132313231333113221313132313113211   >>    C222123232321333131133133313331323133313231323133311322131313231311321   <<    C2221232323213331311331333133313231333132313231333113221313132313113213   >>      C2221232323213331311331333133313231333132313231333113221313132313113212   >>