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 JAVA (judge verdict: Accepted)

import java.util.Scanner;

/**
 *
 * @author k16075kk
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);
        while (true) {
            int a = scanner.nextInt();
            String op = scanner.next();
            int b = scanner.nextInt();
            if (op.equals("?")) {
                break;
            }
            int x = 0;
            if (op.equals("+")) {
                x = a + b;
            } else if (op.equals("-")) {
                x = a - b;
            } else if (op.equals("*")) {
                x = a * b;
            } else {
                x = a / b;
            }
            System.out.println(x);

        }
    }
}