Problem:
Simple Calculator

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.

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.

Constraints

0 ≤ a, b ≤ 20000

No divisions by zero are given.

Sample Input 1

1 + 2
56 - 18
13 * 2
100 / 10
27 + 81
0 ? 0

Sample Output 1

3
38
26
10
108

Solution in JAVA (judge verdict: Accepted)

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

class Main {
    public static void main(String[] args) throws IOException {
    	BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        
      	while(true) {
          String str[] = br.readLine().split(" ");
          int a = Integer.parseInt(str[0]);
          int b = Integer.parseInt(str[2]);

          if (str[1].equals("+")) {
    	  	System.out.println(a + b);
          } else if (str[1].equals("-")) {
			System.out.println(a - b);          	
          } else if (str[1].equals("*")) {
			System.out.println(a * b);          	
          } else if (str[1].equals("/")) {
			System.out.println(a / b);         	
          } else {
              break;
          }
        }    
    }
}