<?php

$FILE_NAME = "input.txt";
$sum = 0;

$fd = fopen($FILE_NAME, "r");
while($line = fgets($fd)){
	$data = array();
	preg_match("/Game (\d+): (.*)/", $line, $data);

	$game_id = $data[1];
	$hand = explode(";", $data[2]);

	$bag = array(
		"red" => 0,
		"green" => 0,
		"blue" => 0,
	);
	foreach ($hand as $h) {
		$colors = array();
		preg_match_all("/(\d+) (red|green|blue)/", $h, $colors);
		foreach (array_combine($colors[2], $colors[1]) as $key => $value) {
			$bag[$key] = max($bag[$key], $value);
		}
	}
	print_r($bag);
	$sum += $bag['red'] * $bag['green'] * $bag['blue'];
}
fclose($fd);
echo $sum;