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

Example Input: Henry earned 5 dollars for each lawn he mowed . If he had 12 lawns to mow , but forgot to mow 7 of them , how much money did he actually earn ?
Example Output: 25

Example Input: At the fair Kaleb bought 6 tickets . After riding the ferris wheel he had 3 tickets left . If each ticket cost 9 dollars , how much money did Kaleb spend riding the ferris wheel ?
Example Output: 27

Example Input: Sam invited 9 friends to a birthday party , but 6 could n't come . If he wanted to buy enough cupcakes so each person could have exactly 2 , how many should he buy ?
Example Output:
6