<?php

$level = 0;
$score = 0;
$count = 0;
$garbage = false;
$ignore = false;
foreach(str_split(file_get_contents('9_input')) as $char)
{
	if($garbage)
	{
		if($ignore)
		{
			$ignore = false;
			continue;
		}
		elseif($char == '!')
		{
			$ignore = true;
		}
		elseif($char == '>')
		{
			$garbage = false;
		}
		else
		{
			$count += 1;
		}
	}
	else
	{
		if($char == '{')
		{
			$level += 1;
			$score += $level;
		}
		elseif($char == '}')
		{
			$level -= 1;
		}
		elseif($char == '<')
		{
			$garbage = true;
		}
	}
}

echo 'Score: '.$score."\r\n";
echo 'Garbage count: '.$count."\r\n";

?>