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_26362472_1 ( left_office VARCHAR, election_number VARCHAR )

### Question ###
What is the date in which a politician who left office on 1840-10-11 for a politician whose election number was 11?

### Accurate SQL ###

SELECT left_office FROM table_26362472_1 WHERE election_number = 11