What is the total number of grids where there were races that had a time of 34:22.335?
CREATE TABLE "moto_gp_classification" (
  "rider" text,
  "manufacturer" text,
  "laps" real,
  "time_retired" text,
  "grid" real
);
SELECT COUNT("grid") FROM "moto_gp_classification" WHERE "time_retired"='34:22.335';