C22212323232133313113313331333132313331323132313331132212322232221   >>    C2221232323213331311331333133313231333132313231333113221232223222   <<    C22212323232133313113313331333132313331323132313331132212322232223   >>      C22212323232133313113313331333132313331323132313331132212322232222   >>