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: Wrong Answer)


import java.util.Scanner;

/**
 *
 * @author k16069kk
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int a = scan.nextInt();
        String op = scan.next();
        int b = scan.nextInt();
        int answer = 0;
        
        switch(op) {
            case "+":
                answer = a + b;
                break;
            case "-":
                answer = a - b;
                break;
            case "*":
                answer = a * b;
                break;
            case "/":
                answer = a / b;
                break;
        }
        
        System.out.println(answer);
    }
    
}