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: Tim has 44 books . Sam has 52 books . How many books do they have together ?

Output: 96


Input: Consider Input: There were 10 students riding on the school bus . At the first stop , 3 students got off of the bus . How many students are left on the bus ?

Output: 7


Input: Consider Input: Zach scored 42 points in the football game . Ben scored 21 points . How many more points did Zach score ?


Output: 21