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.

Example Input: Context: Dan has $ 4. For a total of $ 3 he bought 10 candy bar each one costing the same amount of money.

Question: How much money is left?
Example Output: 1

Example Input: Context: Tiffany was collecting cans for recycling. On monday she had 4 bags of cans. The next day she found some more bags worth of cans. If she had a total of 6 bags altogether

Question: How many bags did she find on the next day?
Example Output: 2

Example Input: Context: Jack received 10 emails in the morning, 5 emails in the afternoon and 4 emails in the evening.

Question: How many more emails did Jack receive in the afternoon than in the evening?
Example Output:
1