CREATE TABLE table_name_24 (run_2 NUMBER, country VARCHAR2, athlete VARCHAR2)

What is the run 2 of athlete Maria Orlova from Russia?
SELECT SUM(run_2) FROM table_name_24 WHERE country = "russia" AND athlete = "maria orlova"
SELECT SUM("run_2") FROM "table_name_24" WHERE "athlete" = "maria orlova" AND "country" = "russia"