CREATE TABLE table_204_775 (id NUMBER, "rank" NUMBER, "nation" CLOB, "gold" NUMBER, "silver" NUMBER, "bronze" NUMBER, "total" NUMBER)

how many more medals does hong kong have than chinese taipei ?
SELECT (SELECT "total" FROM table_204_775 WHERE "nation" = 'hong kong') - (SELECT "total" FROM table_204_775 WHERE "nation" = 'chinese taipei')
SELECT (SELECT "total" FROM "table_204_775" WHERE "nation" = 'hong kong') - (SELECT "total" FROM "table_204_775" WHERE "nation" = 'chinese taipei')