CREATE TABLE table_10281 ("Driver" CLOB, "Constructor" CLOB, "Laps" FLOAT, "Time/retired" CLOB, "Grid" FLOAT)

Tell me the sum of laps with a time/retired of +13 laps with grid more than 18
SELECT SUM("Laps") FROM table_10281 WHERE "Time/retired" = '+13 laps' AND "Grid" > '18'
SELECT SUM("Laps") FROM "table_10281" WHERE "Grid" > '18' AND "Time/retired" = '+13 laps'