using System;

public class Program

{

    public static void Main()

    {

        int[] arr = new int[] { 2, 4, -5, 1, 10 };

        Array.Reverse(arr);

        Console.WriteLine(string.Join(" ", arr));

        Array.Sort(arr);

        Console.WriteLine(string.Join(" ", arr));

        int pos=1;

        int countOfZero = 2;

        Array.Clear(arr,pos,countOfZero);

        Console.WriteLine(string.Join(" ", arr));

        int[] source = new int[] {1,2,3};

        int[] destination =new int[] { 2, 4, -5, 1, 10 };

        source.CopyTo( destination, 1 );

        Console.WriteLine( string.Join(" ", destination ) );

        int[] source1 = new int[] {2,4,6,8,10,12,14,16};

        int[] destination2 = new int[] {1,3,5,7,9,11,13,15,17};

        Array.Copy(source1,4,destination2,2,3);

        Console.WriteLine(string.Join(" ", destination2));

    }

}