C22212323232133313113313331333132313331323132313331132232122113121221   >>    C2221232323213331311331333133313231333132313231333113223212211312122   <<    C22212323232133313113313331333132313331323132313331132232122113121223   >>      C22212323232133313113313331333132313331323132313331132232122113121222   >>