What is the pick# for the medicine hat tigers (wchl)?
CREATE TABLE "round_two" (
  "pick_num" real,
  "player" text,
  "position" text,
  "nationality" text,
  "nhl_team" text,
  "college_junior_club_team" text
);
SELECT MIN("pick_num") FROM "round_two" WHERE "college_junior_club_team"='Medicine Hat Tigers (WCHL)';