using System;

​

public class Program

{

    public static void Main()

    {

        int num = 0, sum = 0;

        Console.WriteLine("Enter any amounts of numbers you want (a negetive number to end):");

        while (num >= 0)

        {

            num = int.Parse(Console.ReadLine());

            sum++;

        }

        Console.WriteLine("The amount of positive numbers is " + (sum - 1));

​

    }

}