CREATE TABLE table_203_747 (id DECIMAL, "rank" DECIMAL, "nation" TEXT, "gold" DECIMAL, "silver" DECIMAL, "bronze" DECIMAL, "total" DECIMAL)

how many more gold medals must qatar win before they can earn 12 gold medals ?
SELECT 12 - (SELECT "gold" FROM table_203_747 WHERE "nation" = 'qatar')
SELECT 12 - (SELECT "gold" FROM "table_203_747" WHERE "nation" = 'qatar')