BEGIN
{
	@a = 10;
	@b = 5;

	printf("a + b + 0xf = %d\n", @a + @b + 0xf);
}

END
{
	printf("a - b = %d\n", @a - @b);

	$c = @a + 2 * @b;
        $d = @a + 0xf5;
	printf("c = %d, d = 0x%x, total = %d\n", $c, $d, ($c - @b) / 5);
}