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 JavaScript (judge verdict: Accepted)

process.stdin.resume();
process.stdin.setEncoding('utf8');
// Here your code !
process.stdin.on("data",function(chunk){
   var line = chunk.trim().split("\n");
   var res = line.map(function(e){
       var ele = e.split(" ");
       switch(ele[1]){
           case "+":
               return parseInt(ele[0]) + parseInt(ele[2]);
               
           case "-":
               return parseInt(ele[0]) - parseInt(ele[2]);
           case "*":
               return parseInt(ele[0]) * parseInt(ele[2]);
           case "/":
               return parseInt(parseInt(ele[0])/ parseInt(ele[2]));
           case "?":
               break;

       }
   });
   console.log(res.slice(0,-1).join("\n"));
});