What is the total rank of Hungary (HUN) when the bronze medals were less than 0?
CREATE TABLE "medal_table" (
  "rank" real,
  "nation" text,
  "gold" real,
  "silver" real,
  "bronze" real,
  "total" real
);
SELECT SUM("rank") FROM "medal_table" WHERE "nation"='hungary (hun)' AND "bronze"<0;