<?php

$prime = 0;
$nonPrime = 0;

while (true) {
    $number = readline();
    if ($number == "stop") {
        break;
    }
    if ($number < 0) {
        echo 'Number is negative.' . PHP_EOL;
    } else {
        for ($i = 2; $i < $number; $i++) {
            if ($number % $i == 0) {
                $nonPrime += $number;
                break;
            }
        }
        $prime += $number;
    }
}
$totalPrime = $prime - $nonPrime;
echo "Sum of all prime numbers is: $totalPrime" . PHP_EOL;
echo "Sum of all non prime numbers is: $nonPrime" . PHP_EOL;