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: At Oliver 's Restaurant a group with 2 adults and 4 children came in to eat . If each meal cost 3 dollars , how much was the bill ?
Example Output: 18

Example Input: Roger has 95 candies . He gives 3 to Stephanie . How many candies will Roger have ?
Example Output: 92

Example Input: While playing at the arcade , Ned won 26 tickets playing ' whack a mole ' and 19 tickets playing ' skee ball ' . If he was trying to buy candy that cost 9 tickets a piece , how many could he buy ?
Example Output:
5