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;

public class Main {

	static Scanner scan = new Scanner(System.in);
	public static void main(String[] args){
	
		for(;scan.hasNext();){
			int a = 0,b=0;
			
			a = scan.nextInt();
			String op = scan.next();
			b = scan.nextInt();
			
//			a = Integer.parseInt(args[i]);
//			b = Integer.parseInt(args[i+2]);
			if(op.equals("+")){
				System.out.println(a+b);
			}
			if(op.equals("-")){
				System.out.println(a-b);
			}
			if(op.equals("*")){
				System.out.println(a*b);
			}
			if(op.equals("/")){
				System.out.println(a/b);
			}
			if(op.equals("?")){
				break;
			}
		}
	}
}