CREATE TABLE table_203_630 (id DECIMAL, "rank" DECIMAL, "nation" TEXT, "gold" DECIMAL, "silver" DECIMAL, "bronze" DECIMAL, "total" DECIMAL)

did italy or norway have 51 total medals ?
SELECT "nation" FROM table_203_630 WHERE "nation" IN ('italy', 'norway') AND "total" = 51
SELECT "nation" FROM "table_203_630" WHERE "nation" IN ('italy', 'norway') AND "total" = 51