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: Mary is baking a cake. The recipe calls for 6 cups of flour 8 cups of sugar and 7 cups of salt. She already put in 5 cups of flour. 

 Question: How many more cups of sugar than cups of salt does she need to add now?

Ex Output:
1


Ex Input:
Context: Every day Ryan spends 6 hours on learning english and 7 hours on learning chinese. 

 Question: How many more hours does he spend on learning chinese than he does on learning english?

Ex Output:
1


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