Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_40 (season INTEGER, score VARCHAR, venue VARCHAR)

### Question ###
Which season was there a game with the score of 1:3 played at the venue of national stadium, maldives?

### Accurate SQL ###

SELECT SUM(season) FROM table_name_40 WHERE score = "1:3" AND venue = "national stadium, maldives"