Add application file

app.py

@@ -20,7 +20,7 @@ import sys
 
 openai.api_key = os.getenv("api_key")
 
-def greet(question):
+def greet(question="Xiaoming have 3 apples and he eats 1. After that he share half of them to Mei. How many apples he left?"):
     input = question + '\n\n' + "|step|subquestion|process|result|"
     response = openai.ChatCompletion.create(
                 model="gpt-3.5-turbo",