CREATE TABLE table_78503 ("Driver" TEXT, "Constructor" TEXT, "Laps" FLOAT, "Time/Retired" TEXT, "Grid" FLOAT)

When laps are less than 80 and Bruce mclaren is the driver, what is the grid?
SELECT "Grid" FROM table_78503 WHERE "Laps" < '80' AND "Driver" = 'bruce mclaren'
SELECT "Grid" FROM "table_78503" WHERE "Driver" = 'bruce mclaren' AND "Laps" < '80'