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.ArrayList;
import java.util.List;
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		List<Integer> result = new ArrayList<Integer>();
		String[] n;

		while (true) {

			String line = sc.nextLine();
			n = line.split(" ");

			if (n[1].equals("?")) {
				break;
			}

			int a = Integer.parseInt(n[0]);
			int b = Integer.parseInt(n[2]);
			if (n[1].equals("+")) {
				result.add(a + b);
			} else if (n[1].equals("-")) {
				result.add(a - b);
			} else if (n[1].equals("*")) {
				result.add(a * b);
			} else if (n[1].equals("/")) {
				result.add(a / b);

			}

		}// whileここまで
		for (Integer i : result) {
			System.out.println(i);

		}

	}

}