What is the sum of the Europe totals for players with other appearances of 0, league appearances under 328, and a position of MF?
CREATE TABLE "most_official_appearances" (
  "ranking" real,
  "nationality" text,
  "name" text,
  "position" text,
  "years" text,
  "league" real,
  "europe" real,
  "others" real,
  "total" real
);
SELECT SUM("europe") FROM "most_official_appearances" WHERE "others"=0 AND "league"<328 AND "position"='mf';