Can you tell me the highest Grid that has the Time of +15.532, and the Laps larger than 23?
CREATE TABLE "125cc_classification" (
  "rider" text,
  "manufacturer" text,
  "laps" real,
  "time" text,
  "grid" real
);
SELECT MAX("grid") FROM "125cc_classification" WHERE "time"='+15.532' AND "laps">23;