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.io.*;
import java.util.Scanner;
class Main{
 public static void main(String[] args){
  int a,b;
  String op;
  Scanner sc= new Scanner(System.in);
  while(true){
   a=sc.nextInt();
   op=sc.next();
   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 if(op.equals("?"))
    break;}
 }
}