<?php
/**
* Created by PhpStorm.
* User: pyro
*/
$h = fopen('php://stdin', 'r');
$result = 0;
switch($parts[0]) {
case '+':
$result = $parts[1] + $parts[2];
break;
case '-':
$result = $parts[1] - $parts[2];
break;
case '*':
$result = $parts[1] * $parts[2];
break;
case '/':
$result = $parts[1] / $parts[2];
break;
case '%':
$result = $parts[1] % $parts[2];
break;
}
}
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