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.

Ex Input:
Context: Danny collects bottle caps and wrappers. He found 15 bottle caps and 18 wrappers at the park. Now he has 67 wrappers and 35 bottle caps in his collection.

Question: How many more wrappers than bottle caps does danny have now?

Ex Output:
32

Ex Input:
Context: There are 11 different books and 17 different movies in the ' crazy silly school ' series. If you read 7 of the books and watched 21 of the movies

Question: How many more movies than books have you read?

Ex Output:
14

Ex Input:
Context: 2 birds were sitting on the fence. Some more birds came to join them. If there are a total of 6 birds on the fence now

Question: How many more birds had come to sit on the fence?

Ex Output:
4