Simple Calculator

This problem requires you to implement a simple calculator that supports four operations: addition, subtraction, multiplication, and division. The input consists of two integers and an operator, separated by spaces. You are guaranteed that the input values are within the range of the C++ int type. In the case of division, the divisor is non-zero and the division will yield an integer result. The task is to perform the calculation and output the result.

inputFormat

The input consists of a single line containing two integers and an operator separated by spaces. The format is:

A op B

Here, A and B are integers, and op is one of the characters: +, -, *, or /.

outputFormat

Output a single integer which is the result of the operation.

sample

3 + 4

7