C22212323232133313113313331333132313331323132321111313111211331211   >>    C2221232323213331311331333133313231333132313232111131311121133121   <<    C22212323232133313113313331333132313331323132321111313111211331213   >>      C22212323232133313113313331333132313331323132321111313111211331212   >>