using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        List<int> arr = new List<int> { 0, 2, 2, 1, 13, 3, 4};

        Console.WriteLine(EvenNum(arr));

    }

    public static int EvenNum(List<int> arr) 

    {

        int eveNumbers = 0;

        foreach ( var cifra in arr) 

        {

            if ((cifra % 2) == 0)

            {

                eveNumbers++;

            }

        }

        return eveNumbers;

    } 

}