B3311331313231311331322331333132313331322331323133311221123231311331   >>    B331133131323131133132233133313231333132233132313331122112323131133   <<    B3311331313231311331322331333132313331322331323133311221123231311333   >>      B3311331313231311331322331333132313331322331323133311221123231311332   >>