using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

    }

    public static int f2(int m1, int m2)

    {

        if(m2>m1)

            return m1;

        else

            return m2;

    }

    public static int f1(int[] a, int p1, int p2)

    {

        if(p1==p2)

            return a[p1];

        else 

        {

            int n1 = p1 + (p2-p1)/2;

            int n2 = n1 + 1;

            return f2(f1(a,p1,n1),f1(a,n2,p2));

        }

    }

}