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: Jerry had 7 action figures on a shelf in his room. Later he added some more action figures to the shelf and removed 10 of the old ones. If there are 8 action figures on his shelf now 

 Question: How many action figures did he add to the shelf?

Output: 11


Input: Consider Input: Context: A farmer had 105 green tomatoes and 71 red tomatoes in his garden. If he picked 137 tomatoes 

 Question: How many tomatoes are left?

Output: 39


Input: Consider Input: Context: Nell collects cards. She had 438 baseball cards and 18 Ace cards. She gave some of her cards to Jeff and now has 55 Ace cards and 178 baseball cards left. 

 Question: How many more baseball cards than Ace cards does Nell have?


Output: 123