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)

fun main(argv: Array<String>) {
  val list: MutableList<Int> = mutableListOf()

  loop@ while (true) {
    val inputs = readLine()!!.split(' ')
    val a  = inputs[0].toInt()
    val op = inputs[1]
    val b  = inputs[2].toInt()
    val res = when (op) {
      "+"  -> a+b
      "-"  -> a-b
      "*"  -> a*b
      "/"  -> a/b
      else -> break@loop
    }
    list.add(res)
  }

  for (i in list.indices) {
    println("${list[i]}")
  }
}