CREATE TABLE table_46541 ("Wicket" CLOB, "Runs" FLOAT, "Batting partners" CLOB, "Batting team" CLOB, "Fielding team" CLOB, "Venue" CLOB, "Season" CLOB)

How many runs did mahela jayawardene and thilan samaraweera have?
SELECT SUM("Runs") FROM table_46541 WHERE "Batting partners" = 'mahela jayawardene and thilan samaraweera'
SELECT SUM("Runs") FROM "table_46541" WHERE "Batting partners" = 'mahela jayawardene and thilan samaraweera'