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.*;
class Main{
	public static void main(String[]args)throws IOException{
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		
		while(true){
			String str=br.readLine();
			String[] num=str.split(" ");
			int a=Integer.parseInt(num[0]);
			String op=num[1];
			int b=Integer.parseInt(num[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{
				break;
			}
		}
	}
}