CREATE TABLE table_name_84 (Id VARCHAR)

What is the 2006 that has a 2r in 2004, and a 2r in 2005?
SELECT 2006 FROM table_name_84 WHERE 2004 = "2r" AND 2005 = "2r"
SELECT 2006 FROM "table_name_84" WHERE "2r" = 2004 AND "2r" = 2005