B3311331313231311331322331333132313231322331311233132313331323231323221231   >>    B331133131323131133132233133313231323132233131123313231333132323132322123   <<    B3311331313231311331322331333132313231322331311233132313331323231323221233   >>      B3311331313231311331322331333132313231322331311233132313331323231323221232   >>