C22212323232133313113313331333132313331323132321111311213231331   >>    C2221232323213331311331333133313231333132313232111131121323133   <<    C22212323232133313113313331333132313331323132321111311213231333   >>      C22212323232133313113313331333132313331323132321111311213231332   >>