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;

namespace AizuOnline
{
    internal class Program
    {
        private static void Main(string[] args)
        {
            var A = new int[10000];
            var M = new string[10000];
            var B = new int[10000];
            var i = 0;
            while (true)
            {
                var x = Console.ReadLine().Split(' ');
                A[i] = Convert.ToInt32(x[0]);
                M[i] = x[1];
                B[i] = Convert.ToInt32(x[2]);

                if (M[i] == "?")
                {
                    break;
                }

                i++;
            }

            for (int j = 0; j < A.Length; j++)
            {
                var a = A[j];
                var m = M[j];
                var b = B[j];

                if (m == "?")
                {
                    break;
                }
                var answer = 0;
                if (m == "+")
                {
                    answer = a + b;
                }
                else if (m == "-")
                {
                    answer = a - b;
                }
                else if (m == "/" && b != 0)
                {
                    answer = a / b;
                }
                else if (m == "*")
                {
                    answer = a * b;
                }
                Console.WriteLine(answer);
            }

            Console.ReadLine();
        }
    }
}