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_13413 ( "Overall points" text, "100 m" text, "400 m" text, "110 m H" text, "1500 m" text )

### Question ###
What is the 100 m time when the overall points are dnf, and the 400 m is dns?

### Accurate SQL ###

SELECT "100 m" FROM table_13413 WHERE "Overall points" = 'dnf' AND "400 m" = 'dns'