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

Input: Consider Input: lizette has 813 stamps . she has 125 more stamps than minerva . how many stamps does minerva have ?

Output: 688

Input: Consider Input: if carl has a total of 89 stamps and kevin has 57 how many more stamps does carl have more than kevin ?

Output: 32

Input: Consider Input: sarah picked 45 apples . her brother picked 9 apples . how many times as many apples did sarah pick ?
Output: 5