while (TRUE)
{
    $target=0;
    $index=0;
    for ($i = 0; $i < 8; $i++)
    {
        fscanf(STDIN, "%d",
            $mountainH // represents the height of one mountain.
        );
        if($mountainH > $index){
        $index=$mountainH;
        $target=$i;
        }
    }
echo $target."\n";