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: The grasshopper, the frog and the mouse had a jumping contest. The grasshopper jumped 19 inches. The grasshopper jumped 4 inches farther than the frog and the mouse jumped 44 inches lesser than the frog. 

 Question: How far did the frog jump?

Output: 15


Input: Consider Input: Context: Edward had $ 18. He spent $ 16. 

 Question: How much money does Edward have now?


Output: 2