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 Scala (judge verdict: Accepted)

object Main {

  def loop(exp: Array[String]):Unit={
    if(!exp.contains("?")){
      println(exp(1) match {
        case "+" => exp(0).toInt+exp(2).toInt
        case "-" => exp(0).toInt-exp(2).toInt
        case "*" => exp(0).toInt*exp(2).toInt
        case "/" => exp(0).toInt/exp(2).toInt
      })
      loop(readLine.split(" "))
    }
  }

  def main(args: Array[String]): Unit = loop(readLine.split(" "))
}