C22212323232133313113313331333132313231333132313222133221311211211   >>    C2221232323213331311331333133313231323133313231322213322131121121   <<    C22212323232133313113313331333132313231333132313222133221311211213   >>      C22212323232133313113313331333132313231333132313222133221311211212   >>