B3311331313231311331322331333132313331322331323133313331323131333132212323331   >>    B331133131323131133132233133313231333132233132313331333132313133313221232333   <<    B3311331313231311331322331333132313331322331323133313331323131333132212323333   >>      B3311331313231311331322331333132313331322331323133313331323131333132212323332   >>