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;

public class Main {
	public static void main(String[] args){
			Scanner sc = new Scanner(System.in);

			String op = "";
			while( !(op.equals("?")) ){

				int a = sc.nextInt();
				op = sc.next();
				int b = sc.nextInt();
				if( op.equals("+")){
					System.out.println((a + b));
				}
				if( op.equals("-")){
					System.out.println((a - b));
				}
				if( op.equals("*")){
					System.out.println((a * b));
				}
				if( op.equals("/")){
					System.out.println((a / b));
				}

			}
	}

}


