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: Wrong Answer)

(function(input) {
    var lines = input.split('\n');
    for (var i = 0; i < lines.length; i++) {
        var l = lines[i];
        if (l.match(/\?/)) {
            break;
        }
        var r = eval(l);
        console.log(r);
    }
})(require('fs').readFileSync('/dev/stdin', 'utf8'));