using System;

public class Program

{

    public static void Main()

    {

        //Luis Antonio Hernández del Río

        int x = 1, e = 0, o = 0;

        Console.WriteLine("Write numbers, and stop the process with a 0:");

        while(x != 0){

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

        if(x % 2 == 0){

            e++;

          }

        else{

            o++;

          }

       }

        e = e - 1;

        Console.WriteLine("Even numbers: " + e);

        Console.WriteLine();

        Console.WriteLine("Odd numbers: " + o);

    }

}