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: a farmer planted 2 tomato seeds 10 cucumber seeds and 3 pumpkin seeds . how many seeds did he plant all together ?
Example Output: 15

Example Input: there are some children at a bakery . as they were deciding what to buy 24 girls came in and 31 boys left . if there are 78 children in the bakery in the end how many children were there at first ?
Example Output: 85

Example Input: ethan has 31 presents . alissa has 22 more than ethan . how many presents does alissa have ?
Example Output:
53