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.

Input: Consider Input: Lizette has 813 stamps . Lizette has 125 more stamps than Minerva . How many stamps does Minerva have ?

Output: 688


Input: Consider Input: Sally has 6 blue balloons . Fred has 3 times more blue balloons than Sally . How many blue balloons does Fred have now ?

Output: 18


Input: Consider Input: Mark sprinted 24 miles at 6 miles per hour . How long did Mark sprint ?


Output: 4