Problem:
Simple Calculator

Write a program which reads two integers a, b and an operator op, and then prints the value of a op b.

The operator op is '+', '-', '*' or '/' (sum, difference, product or quotient). The division should truncate any fractional part.

Input

The input consists of multiple datasets. Each dataset is given in the following format.

a op b

The input ends with a dataset where op = '?'. Your program should not process for this dataset.

Output

For each dataset, print the value in a line.

Constraints

0 ≤ a, b ≤ 20000

No divisions by zero are given.

Sample Input 1

1 + 2
56 - 18
13 * 2
100 / 10
27 + 81
0 ? 0

Sample Output 1

3
38
26
10
108

Solution in C# (judge verdict: Accepted)

using System;

class Program
{
    static void Main()
    {
        while(true){
            var line = Console.ReadLine();
            String[] array = line.Split(' ');
            var a = int.Parse(array[0]);
            var ops = array[1];
            var b = int.Parse(array[2]);
            
            if(ops.Equals("?")){
                break;
            }else if(ops.Equals("+")){
                Console.WriteLine(a+b);
            }else if(ops.Equals("-")){
                Console.WriteLine(a-b);
            }else if(ops.Equals("*")){
                Console.WriteLine(a*b);
            }else if(ops.Equals("/")){
                Console.WriteLine(a/b);
            }
            
        }
    }
}