using System;

public delegate void Func<TA> (TA arg0);

class Demo
{
	static void F<T> (T[] values, T value, Func<T> f)
	{
		Console.WriteLine (values [0]);
		f (value);
		Console.WriteLine (values [0]);
	}
	
	public static int Main ()
	{
		int[] a = new int [] { 10 };
		F (a, 5, i => a [0] = i);
		
		if (a [0] != 5)
			return 1;
			
		return 0;
	}
}