CREATE TABLE table_23390604_1 (mahmoud_ahmadinejad VARCHAR(255), mir_hossein_mousavi VARCHAR(255))
List all the results for mahmoud ahmadinejad when candidate mir-hossein mousavi obtained 218481 votes.
    
SQL: SELECT mahmoud_ahmadinejad FROM table_23390604_1 WHERE mir_hossein_mousavi = 218481