B3311331313231311331322331333132313331322331323133313311211331323331323312321   >>    B331133131323131133132233133313231333132233132313331331121133132333132331232   <<    B3311331313231311331322331333132313331322331323133313311211331323331323312323   >>      B3311331313231311331322331333132313331322331323133313311211331323331323312322   >>