What are the names of storms that both affected two or more regions and affected a total of 10 or more cities?
select t1.name from storm as t1 join affected_region as t2 on t1.storm_id = t2.storm_id group by t1.storm_id having count(*) >= 2 intersect select t1.name from storm as t1 join affected_region as t2 on t1.storm_id = t2.storm_id group by t1.storm_id having sum(t2.number_city_affected) >= 10