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: Ed had 2 more marbles than Doug. Doug lost some of his marbles at the playground. Now Ed has 19 more marbles than doug. 

 Question: How many marbles did Doug lose?

Output: 17


Input: Consider Input: Context: There were 22 parents in the program and 676 people in total. 

 Question: How many pupils were present in the program?

Output: 654


Input: Consider Input: Context: Lawrence county has 898051 kids. During summer break 629424 kids go to camp and the rest stay home. 

 Question: How many kids stay home?


Output: 268627