CREATE TABLE table_name_50 (career_sr VARCHAR)

What is 2001, when 1987 is N/A, and when Career SR is N/A?
SELECT 2001 FROM table_name_50 WHERE 1987 = "n/a" AND career_sr = "n/a"
SELECT 2001 FROM "table_name_50" WHERE "career_sr" = "n/a" AND "n/a" = 1987