public static int maximum(int f, int g)
{
	try
	{
		int[] far = new int[f];
		far[g] = 1;
		return f;
	}
	catch(NegativeArraySizeException e)
	{
		f = -f;
		g = -g;
		return (-maximum(f, g) == -f)? -g : -f;
	}
	catch(IndexOutOfBoundsException e)
	{
		return (maximum(g, 0) == 0)? f : g;
	}
}