How many yards lost by the player with more gained than 51 and average/g of 3.6?
CREATE TABLE "rushing_sortable_options" (
  "name" text,
  "gain" real,
  "loss" real,
  "long" real,
  "avg_g" text
);
SELECT COUNT("loss") FROM "rushing_sortable_options" WHERE "avg_g"='3.6' AND "gain">51;