human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Total #, Episode #, Title, Directed by, Written by, Original air date
###Question: How many different episode numbers does the episode written by Sheri Elwood and directed by Jim Allodi have?
gpt
SELECT COUNT Total # FROM table WHERE Written by = Sheri Elwood AND Directed by = Jim Allodi