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){
        int a,b;
        int ans;
        String ob;
        Scanner scan = new Scanner(System.in);
        while(true){
        a = scan.nextInt();
        ob = scan.next();
        b = scan.nextInt();
        if(ob.equals("+"))ans = a+b;
        else if(ob.equals("-"))ans = a-b;
        else if(ob.equals("*"))ans  = a *b;
        else if(ob.equals("/"))ans=a/b;
        else break;
        System.out.println(ans);
        }
        scan.close();
    }   
}
