C22212323232133313113313331333132313231333132313222132221131221   >>    C2221232323213331311331333133313231323133313231322213222113122   <<    C22212323232133313113313331333132313231333132313222132221131223   >>      C22212323232133313113313331333132313231333132313222132221131222   >>