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.

Ex Input:
If Benjamin strolled 14 miles at 2 miles per hour , how long was Benjamin travelling ?

Ex Output:
7


Ex Input:
There were 58 geese and 37 ducks in the marsh . How many birds were there in all ?

Ex Output:
95


Ex Input:
David removes 7 eggs from a jar . There were originally 27 eggs in the jar . How many eggs are left in the jar ?

Ex Output:

20