Complete the 8915E worksheet. 

Check the Box B at the top for Conoravirus distribution

Scroll down and enter the 1/3 distribution amount on Lines 2 and 5, that should fill in Line 9 automatically.

That should also put the amounts over onto the 8915F in Lines 12, 13 and 15 and put the dollar amount on Line 4b or 5b (IRA or 401k)