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(string[] args)
     {
         double data0, data1, data2;
         double[] result = new double[3];
         String nyuryoku;
         string[] data; 
         while (true)
         {
             nyuryoku = Console.ReadLine();
             data = nyuryoku.Split(' ');
             data0 = Double.Parse(data[0]);
             data2 = Double.Parse(data[2]);
             //data2 = Double.Parse(data[2]);
             double result1, result2, result3;

             switch (data[1])
             {
                 case "+":
                     result1 = data0 + data2;
                     break;
                 case "-":
                     result1 = data0 - data2;
                     break;
                 case "/":
                     result1 = data0 / data2;
                     break;
                 case "*":
                     result1 = data0 * data2;
                     break;
                 default:
                     return;
             }
             Console.WriteLine(String.Format("{0}", (int)result1));

         }

      }
 }