B331133131323131133132233133313231333132233132313331333132323213232311331   >>    B33113313132313113313223313331323133313223313231333133313232321323231133   <<    B331133131323131133132233133313231333132233132313331333132323213232311333   >>      B331133131323131133132233133313231333132233132313331333132323213232311332   >>