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_4247 ( "Year" real, "Matches" real, "Innings" real, "Not out" real, "Runs" real, "High Score" text, "100" real, "50" real, "Average" text, "Strike rate" text, "Catches/Stumpings" text )

### Question ###
What is the lowest value for runs when the average is 42.36?

### Accurate SQL ###

SELECT MIN("Runs") FROM table_4247 WHERE "Average" = '42.36'