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.*;
import java.util.*;
public class Main {
	public static void main (String[] args){
	Scanner sc=new Scanner(new InputStreamReader(System.in));
	while(true){
	int a=sc.nextInt();
	String op=sc.next();
	int b=sc.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);
	}
	}
	sc.close();
	}
}