You are given a math word problem and you are supposed to only use subtraction on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

Input: Consider Input: Context: A grocery store had 81 bottles of regular soda, 60 bottles of diet soda and 60 bottles of lite soda. 

 Question: How many more bottles of regular soda did they have than diet soda?

Output: 21


Input: Consider Input: Context: Robin's hair was 17 inches long. He cut off some inches of her hair. If his hair is now 13 inches long 

 Question: How much of his hair did he cut?

Output: 4


Input: Consider Input: Context: Helen the hippo and her friends are preparing for thanksgiving at Helen's house. Helen baked 197 chocolate chip cookies and 46 raisin cookies yesterday. And she baked 75 raisin cookies and 66 chocolate chip cookies this morning. 

 Question: How many more chocolate chip cookies did Helen bake yesterday compared to today?


Output: 131