using System;

public class Program

{

    public static void Main()

    {

        int i,n;

        Console.WriteLine("Enter the number of highest elements you want to extract from the array:");

        while (!int.TryParse(Console.ReadLine(), out n))

        {

            Console.WriteLine("Enter the number of highest elements you want to extract from the array:");

        }

        double[] arr = { 12.1, 5.9, 2.9, 6.8, 20.5 };

        if (n > arr.Length)

            n = arr.Length;

        double[] result = new double[n];

        double max = 0;

        int k;

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

        {

            max = arr[0];

            k = 0;

            for (i = 1; i < arr.Length; i++)

            {

                if (max < arr[i])

                {

                    max = arr[i];

                    k = i;

                }

            }

            result[j] = max;

            arr[k] = Double.MinValue;

            Console.WriteLine("Highest numbers: {0}", result[j]);

        }

    }

}