B3311331313231311331322331333132313331323133313233313233313221212231   >>    B331133131323131133132233133313231333132313331323331323331322121223   <<    B3311331313231311331322331333132313331323133313233313233313221212233   >>      B3311331313231311331322331333132313331323133313233313233313221212232   >>