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_203_376 ( id number, "no." number, "name" text, "term of office" text, "president(s) served under" text )

### Question ###
how long did the first director serve in office ?

### Accurate SQL ###

SELECT "term of office" - "term of office" FROM table_203_376 ORDER BY "term of office" LIMIT 1