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.*;
public class Main {
  public static void main(String[] args) {
    ArrayList<Integer> ans = new ArrayList<Integer>();
    Scanner sc = new Scanner(System.in);
        while(true) {
            String line = sc.nextLine();
            String[] linesp = line.split(" ");
            int a = Integer.parseInt(linesp[0]);
            String op = linesp[1];
            int b = Integer.parseInt(linesp[2]);
            if (op.equals("+")) {
                ans.add(a + b);
            } else if (op.equals("-")) {
                ans.add(a - b);
            } else if (op.equals("*")) {
                ans.add(a * b);
            } else if (op.equals("/")) {
                ans.add(a / b);
            } else if (op.equals("?")) {
                break;
            }
        }
        for(int i = 0; i < ans.size(); i++) {
            System.out.println(ans.get(i));
        }
  }
}