CREATE TABLE table_name_31 (grid INT, driver VARCHAR, laps VARCHAR)

What is the grid total for ralf schumacher racing over 53 laps?
SELECT SUM(grid) FROM table_name_31 WHERE driver = "ralf schumacher" AND laps > 53
SELECT SUM("grid") FROM "table_name_31" WHERE "driver" = "ralf schumacher" AND "laps" > 53