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: After the price of petroleum oil went up by 10 % , a consumer reduced his oil consumption by the same percent . By what percent would his petroleum bill be changed ?
Example Output: 1

Example Input: Megan earned 8 points for each bag of cans she recycled . If she had 14 bags , but did n't recycle 5 of them , how many points would she have earned ?
Example Output: 72

Example Input: There were 7 friends playing a video game online when 2 more players joined the game . If each player had 7 lives , how many lives did they have total ?
Example Output:
63