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 {

	public static void main(String args[]){
		
		Scanner sc = new Scanner(System.in);
		
		while(sc.hasNext()){
			
			int a = Integer.parseInt(sc.next());
			String op = sc.next();
			int b = Integer.parseInt(sc.next());
			
			if(op.equals("?")){
				break;
			}
			
			int answer = culculateValues(op,a,b);
			System.out.println(answer);
			
		}
		
		sc.close();
		
	}

	private static int culculateValues(String op, int a, int b) {
		
		int answer = 0;
		
		switch(op){
		
		case "+":
			answer = a + b;
			break;
		case "-":
			answer = a - b;
			break;
		case "*":
			answer = a * b;
			break;
		case "/":
			answer = a / b;
			break;
		
		}
		
		return answer;
	}
}