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