CREATE TABLE table_50377 ("Name" CLOB, "Date" CLOB, "Goals" FLOAT, "Assists" FLOAT, "Team" CLOB, "Venue" CLOB, "Opponent" CLOB, "Competition" CLOB, "Total Gs" FLOAT, "Total As" FLOAT)

What is the sum of the assists kang jae-soon had in the k-league competition in ulsan?
SELECT SUM("Assists") FROM table_50377 WHERE "Venue" = 'ulsan' AND "Competition" = 'k-league' AND "Name" = 'kang jae-soon'
SELECT SUM("Assists") FROM "table_50377" WHERE "Competition" = 'k-league' AND "Name" = 'kang jae-soon' AND "Venue" = 'ulsan'