using System;

using System.Collections.Generic;

using System.Linq;

​

public class Program

{

    public static void Main(string[] args)

    {

        List<int> numeros = new List<int>();

        List<int> pares = new List<int>();

        List<int> impares = new List<int>();

​

        Random random = new Random();

​

        for(int i = 0; i < 20; i++)

        {

            int n = random.Next(1, 99);

            numeros.Add(n);

            if (n % 2 == 0)

                pares.Add(n);

            else

                impares.Add(n);

        }

​

        Console.WriteLine("Todos os números:");

​

​

        for (int i =0; i < numeros.Count; i++)

           Console.Write( numeros[i].ToString() + (i == numeros.Count-1 ? ".\r\n" : ", " ));

​

​

        Console.WriteLine("\n" + "Números pares:");

​

        for (int i =0; i < pares.Count; i++)

           Console.Write( pares[i].ToString() + (i == pares.Count-1 ? ".\r\n" : ", " ));

​

        Console.WriteLine("\n" + "Números ímpares:");

​

        for (int i =0; i < impares.Count; i++)

           Console.Write( impares[i].ToString() + (i == impares.Count-1 ? ".\r\n" : ", " ));

​

    }

}