CREATE TABLE table_name_76 (Id VARCHAR2)

Which 2006 has a 2012 of a, and a 2011 of 3r?
SELECT 2006 FROM table_name_76 WHERE 2012 = "a" AND 2011 = "3r"
SELECT 2006 FROM "table_name_76" WHERE "3r" = 2011 AND "a" = 2012