Given a math word problem, answer the following question. You might need to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the question and then only report the final numerical answer.

Example Input: willy has 1400 crayons . lucy has 290 crayons . how many more crayons does willy have then lucy ?
Example Output: 1110

Example Input: jovana filled her bucket with 5 pounds of shells . if a friend comes to add 15 pounds of shells and another friend comes to add 17 pounds of shells how many pounds does she have altogether ?
Example Output: 37

Example Input: 179 birds were sitting in a tree . 38 more birds flew up to the tree . how many birds were there altogether in the tree ?
Example Output:
217