Problem: 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

Solution (in JAVA):

Solution:
import java.util.Scanner;
import java.io.*;
class Main{
    public static void main(String[] av)throws IOException{
	Scanner sc=new Scanner(System.in);

     
	while(true){
	    int a=sc.nextInt();
	    String 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);
	    if(op.equals("?"))		break;
	       
	
	}

    
    
    }
}