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)

//Simple Calculator
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

class Main {

	public static void main(String[] args) throws IOException {

		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));

		String input;
		while (!(input = in.readLine()).equals("0 ? 0")) {
			String[] aOpb = input.split(" ");
			// String[] aOpb = "1 ? 2".split(" ");
			int a = Integer.parseInt(aOpb[0]);
			String op = aOpb[1];
			int b = Integer.parseInt(aOpb[2]);

			if (op.equals("?")) {
				break;
			}

			int ans = 0;

			if (op.equals("+")) {
				ans = a+b;
			} else if (op.equals("-")) {
				ans = a-b;
			} else if (op.equals("*")) {
				ans = a*b;
			} else if (op.equals("/")) {
				ans = a/b;
			}
			System.out.println(ans);
		}

	}
}