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

Input: Consider Input: Fred found 47 seashells on the beach , he gave Jessica 25 of the seashells . How many seashells does he now have ?

Output: 22


Input: Consider Input: Sara picked 6 pears and Tim picked 5 pears from the pear tree . How many pears were picked in total ?

Output: 11


Input: Consider Input: Nancy grew 6 potatoes . Sandy grew 7 potatoes . How many potatoes did they grow in total ?


Output: 13