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: Time Limit Exceeded)

import java.util.Scanner;
public class Main {
public static void main(String[] args) {
	Scanner scan = new Scanner(System.in);
	System.out.println("Hello");
	int q = scan.nextInt();
	String value = scan.next();
	int w = scan.nextInt();
	System.out.println(q);
	System.out.println(value);
	System.out.println(w);
	String add = "+";
	String subtract = "-";
	String multiply = "*";
	String division = "/";
	int answer = 9;
	while (answer != 5) {
	if (value.equals(add)) {
		System.out.println("true");
		answer = q + w;
	} else if (value.equals(subtract)) {
		answer = q - w;
	}else if (value.equals(multiply)) {
		answer = q * w;
	} else if (value.equals(division)){
		answer = q / w;
	} else {
		answer = 5;
	}
	System.out.println(answer);
}
}
}