using System;

​

public class Program

{

    public static void Main()

    {

        //Regina Izquierdo

        int x;

        int t = 0;

        int p = 0;

        Console.WriteLine("Write as many numbers as you want, but when you write a zero I'll tell you how many numbers were even and how many were prime");

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

        while (x != 0)

        {

            for (int i = 1; i <= x; i++)

            {

                if (x % i == 0)

                {

                    t++;

                }

            }

​

            if (t == 2)

            {

                p++;

            }

​

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

            t = 0;

        }

​

        Console.WriteLine("PRIME numbers: " + p);

    }

}