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.

Constraints

* 0 ≤ a, b ≤ 20000
* No divisions by zero are given.

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.

Example

Input

1 + 2
56 - 18
13 * 2
100 / 10
27 + 81
0 ? 0


Output

3
38
26
10
108
import java.util.Scanner;

class Main {
	static int d;
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		int a,b,result;
		String op;
		roup:{
			while(true){
				a = scanner.nextInt();
				op =scanner.next();
				b = scanner.nextInt();

				switch(op){
				case "+":
					result = a+b;
					break;
				case "-":
					result = a-b;
					break;
				case "*":
					result = a*b;
					break;
				case "/":
					result = a/b;
					break;
				default:
					break roup;
				}
				System.out.println(result);
			}
		}

	}
}
