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: There are 16 bottle caps in a box . Marvin takes 6 bottle caps . How many are left ?

Output: 10


Input: Consider Input: Marlee has 12 guests coming to her Halloween party . Each table will hold 3 guests . How many tables will she need ?

Output: 4


Input: Consider Input: Mike found 6 seashells and 4 starfish , but 4 of the seashells were broken . How many unbroken seashells did Mike find ?


Output: 2