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.io.*;
public class Main{
	public static void main(String[] args)throws Exception{
		BufferedReader input=new BufferedReader(new InputStreamReader(System.in));
	while(true){
		String str=input.readLine();
		String[] atr=str.split(" ");
		int a=Integer.parseInt(atr[0]);
		String op=atr[1];
		int b=Integer.parseInt(atr[2]);
		if(op.equals("+")){
			System.out.println(a+b);
		}
		else if(op.equals("-")){
			System.out.println(a-b);
		}
		else if(op.equals("*")){
			System.out.println(a*b);
		}

		else if(op.equals("/")){
			System.out.println(a/b);
		}
		else if(op.equals("?")){
			break;
			}
			

		}
	
		
	}
}