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 Kotlin (judge verdict: Accepted)

import java.util.*

fun main(args: Array<String>) {
    val sc = Scanner(System.`in`)

    while(true) {
        val i1 = sc.nextInt()
        val op = sc.next()
        val i2 = sc.nextInt()

        if (op == "?") break

        when (op) {
            "+" -> println(i1 + i2)
            "-" -> println(i1 - i2)
            "*" -> println(i1 * i2)
            "/" -> println(i1 / i2)
        }
    }
}