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: Paco had 37 sweet cookies and 11 salty cookies. He ate 5 sweet cookies and 2 salty cookies.

Question: How many more sweet cookies than salty cookies did he eat?

Ex Output:
3

Ex Input:
Context: In a school there are 402 more girls than boys. If there are 739 girls

Question: How many boys are there in that school?

Ex Output:
337

Ex Input:
Context: Dave had 16 apps and 77 files on his phone. After deleting some apps and files he had 5 apps and 23 files left.

Question: How many apps did he delete?

Ex Output:
11