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.*;	
class Main{	
    public static void main(String[] args){	
        Scanner input=new Scanner(System.in);	
        int a,b;	
        while(true){	
            a=input.nextInt();	
            char op = input.next().charAt(0);	
            b=input.nextInt();	
        if(op == '?')break;	
        else if (op == '+')	
            System.out.println(a + b);	
        else if ( op == '-')	
            System.out.println(a - b);	
        else if (op == '*')	
            System.out.println(a * b);	
        else if(op == '/')	
            System.out.println(a / b);	
        }	
    }	
}