using System;

public class Program

{

    public static void Main()

    {

         int N, P = 0, Nega = 0, count;

            for (count = 0; count <= 20; count = count + 1)

            {

                Console.Write("Input number:");

                N = Convert.ToInt32(Console.ReadLine());

            }

            if (count > 0)

            {

                P = P + 1;

            }

            else

            {

                Nega = Nega + 1;

            }

            Console.Write("the totalpositive number is:" + P + "the totalnegative number is:" + Nega);

            Console.ReadLine();

    }

}

​

​

​

​

​

​