using System;

public class Program

{

    public static void Main()

    {

        int length = 20;

        int minValue = 10;

        int maxValue = 99;

        Random r = new Random();

        //string reverse

        Console.WriteLine("StringReserse: ");

        var strOutput = "";

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

            strOutput += " " + r.Next(minValue, maxValue);

        Console.WriteLine(strOutput);

        char[] charArray = strOutput.ToCharArray();

        Array.Reverse( charArray );

        var strOutputReverse = new string( charArray );

        Console.WriteLine(strOutputReverse);

        //integers reverse

        Console.WriteLine("Integers Reserse: ");

        var rndArray = new int[length];

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

            rndArray[i] = r.Next(minValue, maxValue);

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

        var rndArrayReverse = new int[length];

        Array.Copy(rndArray, rndArrayReverse, rndArray.Length);

        Array.Reverse( rndArrayReverse );

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

    }

}