03.Froggy

<?php
$frogs = explode(" ", readline());


$input = readline();
while (true) {
    $args = explode(" ", $input);
    $command = $args[0];

    if ($command === "Print") {
        $orientation = $args[1];
        echo "Frogs: ";
        if ($orientation === "Normal") {
            echo implode(" ", $frogs);
        } else {
            echo implode(" ", array_reverse($frogs));
        }
        break;
    } else if ($command === "Join") {
        $name = $args[1];
        $frogs[] = $name;
    } else if ($command === "Dive") {

        $index = intval($args[1]);
        if ($index >= 0 && $index < count($frogs)) {
            array_splice($frogs, $index, 1);
        }
    } else if ($command === "First") {
        $count = intval($args[1]);
        for ($i = 0; $i < count($frogs); $i++) {
            if ($count == 0) {
                break;
            }
            echo $frogs[$i] . " ";
            $count--;
        }
        echo PHP_EOL;
    } else if ($command === "Last") {
        $count = intval($args[1]);
        for ($i = count($frogs) - min($count,count($frogs)); $i < count($frogs); $i++) {
            echo $frogs[$i] . " ";
        }
        echo PHP_EOL;
    } else if ($command === "Jump") {
        $name = $args[1];
        $index = intval($args[2]);
        if ($index >= 0 && $index < count($frogs)) {
            array_splice($frogs, $index, 0, $name);
        }
    }

    $input = readline();
}