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;
 
public class Main{
  public static void main(String[] args){
    Scanner obj = new Scanner(System.in);
    while(true){
      int a = obj.nextInt();
      char op = obj.next().charAt(0);
      int b = obj.nextInt();
     
      if(op == '+'){
        System.out.println(a + b);}
      else if(op == '-'){
        System.out.println(a - b);}
      else if(op == '*'){
        System.out.println(a * b);}
      else if(op == '/'){
        System.out.println(a / b);}
      else{
        break;}
    }
  }
}