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

Example Input: Mrs. Hilt impressed 2436 fans at the basketball game on Friday . If the fans were seated in equal groups on 3 sets of bleachers , how many fans were on each set ?
Example Output: 812

Example Input: If Joan bicycled 25 miles at 5 miles per hour , how long was Joan travelling ?
Example Output: 5

Example Input: Mark has 13 trees in his backyard . If he plants 12 more , how many trees will he have ?
Example Output:
25