Name the class 1-200 for university of hertfordshire for university of warwick
CREATE TABLE "winners" (
  "year" text,
  "location" text,
  "class_1" text,
  "best_uk_team" text,
  "class_1_200" text,
  "class_3" text,
  "class_1a" text
);
SELECT "class_1_200" FROM "winners" WHERE "best_uk_team"='University of Hertfordshire' AND "class_1a"='University of Warwick';