At Indianapolis North Central that has greater than 1,829 enrolled, what is the IHSAA Football Class?
CREATE TABLE "indiana_high_school_athletics_conference" (
  "school" text,
  "mascot" text,
  "location" text,
  "enrollment" real,
  "ihsaa_class" text,
  "ihsaa_football_class" text,
  "num_county" text
);
SELECT "ihsaa_football_class" FROM "indiana_high_school_athletics_conference" WHERE "enrollment">'1,829' AND "school"='indianapolis north central';