06. Juice Diet, PB Online Exam - 7 January 2018

<?php
// Programming Basics Online Exam - 7 January 2018

$raspberries = intval(readline());
$strawberries = intval(readline());
$cherries = intval(readline());
$juiceCapacity = intval(readline());

$result = '';
$maxJuice = -1;

for ($n3 = $cherries; $n3 >= 0; $n3--) {
    for ($n2 = $strawberries; $n2 >= 0; $n2--) {
        for ($n1 = $raspberries; $n1 >= 0; $n1--) {
            $currentJuice = $n1 * 4.5 + $n2 * 7.5 + $n3 * 15;
            if ($currentJuice <= $juiceCapacity && $maxJuice < $currentJuice) {
                $maxJuice = $currentJuice;
                $result = "$n1 Raspberries, $n2 Strawberries, $n3 Cherries. Juice: $maxJuice ml.";
            }
        }
    }
}

echo $result;