CREATE TABLE table_43642 ("Year" FLOAT, "U.S. Rank" FLOAT, "Total s Ton" FLOAT, "Domestic s Ton" FLOAT, "Foreign Total s Ton" FLOAT, "Foreign Imports s Ton" FLOAT, "Foreign Exports s Ton" FLOAT)

what is the average foreign imports s tone when the total s tone is 3,157,247 and the foreign exports s ton is less than 358,493?
SELECT AVG("Foreign Imports s Ton") FROM table_43642 WHERE "Total s Ton" = '3,157,247' AND "Foreign Exports s Ton" < '358,493'
SELECT AVG("Foreign Imports s Ton") FROM "table_43642" WHERE "Foreign Exports s Ton" < '358,493' AND "Total s Ton" = '3,157,247'