diff --git a/src/main/py/read_math_function.py b/src/main/py/read_math_function.py
index 67df73e..3e0c5a0 100644
--- a/src/main/py/read_math_function.py
+++ b/src/main/py/read_math_function.py
@@ -95,4 +95,6 @@ def simplify_exponential_function(type, function):
 def simplify_product_function(type, function):
     if type != "p":
         return False
-    terms = function.split('*')
\ No newline at end of file
+    terms = function.split('*')
+    result_coefficient = 1
+    result_variables = ""
\ No newline at end of file