CREATE TABLE table_53607 ("Driver" TEXT, "Constructor" TEXT, "Laps" FLOAT, "Time/Retired" TEXT, "Grid" FLOAT)

What is the number of the grid when there was a Time/Retired of engine and less than 9 laps?
SELECT SUM("Grid") FROM table_53607 WHERE "Time/Retired" = 'engine' AND "Laps" < '9'
SELECT SUM("Grid") FROM "table_53607" WHERE "Laps" < '9' AND "Time/Retired" = 'engine'