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;
class Main {
  public static void main(String args[]) {
Scanner sc=new Scanner(System.in);
	  for(;;) {
		  int a=sc.nextInt();
		  String op=sc.next();
		  int b=sc.nextInt();
		  if(op.equals("+")) {
			 System.out.println(a+b);
		  }
		  else if(op.equals("-")) {
			  System.out.println(a-b);
		  }
		  else if(op.equals("*")) {
			  System.out.println(a*b);
		  }
		  else if(op.equals("/")) {
			  System.out.println(a/b);
		  }
		  else break;

	  } sc.close();
  }


}