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.*;
public class Main {
	public static void main(String[] args) throws Exception{
		Scanner sc = new Scanner(System.in);
		String s = sc.nextLine();
		String[] st = s.split(" ");
		int x = Integer.parseInt(st[0]);
		s = st[1];
		int y = Integer.parseInt(st[2]);
		if(s.equals("+")){
			System.out.println(x+y);
		}else if(s.equals("-")){
			System.out.println(x-y);
		}else if(s.equals("*")){
			System.out.println(x*y);
		}else if(s.equals("/")){
			System.out.println(x/y);
		}
	}
}