using System;

public class Program

{

    public static void Main()

    {

        int [] arr=new int[10];

        int a;

        Console.WriteLine("Enter the size of the array");

        int n=Convert.ToInt32(Console.ReadLine());

        Console.WriteLine("Enter "+n+" elements for an array");

        for(int i=0;i<n;i++)

        {

            arr[i]=Convert.ToInt32(Console.ReadLine());

        }

        for (int i=0;i<n;i++) 

        {

             for (int j=i+1;j<n;j++)

            {

                if (arr[i] < arr[j]) 

                {

                    a =  arr[i];

                    arr[i] = arr[j];

                    arr[j] = a;

                 }

             }

         }

        int min=0;

        for(int i=0;i<n;i++){

            min=arr[n-1]+arr[n-2];

        }

        Console.WriteLine(min);

    }

}