What is the sum of the pick numbers for the player that went to San Miguel Beermen who played at San Sebastian?
CREATE TABLE "round_3" (
  "pick" real,
  "player" text,
  "country_of_origin" text,
  "pba_team" text,
  "college" text
);
SELECT SUM("pick") FROM "round_3" WHERE "pba_team"='san miguel beermen' AND "college"='san sebastian';