CREATE TABLE table_name_82 (runs NUMBER, batting_partners VARCHAR2)

How many runs did mahela jayawardene and thilan samaraweera have?
SELECT SUM(runs) FROM table_name_82 WHERE batting_partners = "mahela jayawardene and thilan samaraweera"
SELECT SUM("runs") FROM "table_name_82" WHERE "batting_partners" = "mahela jayawardene and thilan samaraweera"