You are given a math word problem and you are supposed to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

Example Input: Haley was playing a video game and had 14 lives . In a hard part of the game she lost 4 lives . If she got 36 more lives in the next level , how many lives would she have ?
Example Output: 46

Example Input: A pet store has 9 bird cages . If each cage has 2 parrots and 6 parakeets in it , how many birds does the pet store have total ?
Example Output: 72

Example Input: Tim found 679 seashells and 110 starfish on the beach . He gave 172 of the seashells to Sara . How many seashells does Tim now have ?
Example Output:
507