using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace polojitelniElementiNaMasiv
{
    class polojitelniElementiNaMasiv
    {
        static void Main(string[] args)
        {
            Console.Write("n=");
            int n = int.Parse(Console.ReadLine());
            int[] numbers = fillArray(n);

            Console.WriteLine("chisata v masiva sa: ");
            printArray(numbers);

            Console.WriteLine("polojitelnite chisla v masiva: ");
            Console.WriteLine(brChetniChisla(numbers));

            Console.WriteLine("broq na polojitelnite chisla: ");
            printEvenNumbers(numbers);

            Console.WriteLine("pozicii na chetni chisla: ");
            int[] chetniPozicii = pozicii(n);
        }
        static int[] fillArray(int n)
        {
            int[] arr = new int[n];
            for (int i = 0; i < arr.Length; i++)
            {
                arr[i] = int.Parse(Console.ReadLine());
            }
            return arr;
        }
        static void printArray(int [] arr)
        {
            for (int i = 0; i < arr.Length; i++)
            {
                Console.WriteLine(arr[i]);
            }
        }
        static void printEvenNumbers(int [] arr)
        {
            for (int i = 0; i < arr.Length; i++)
            {
                if (arr[i]%2==0)
                {
                    Console.WriteLine(arr[i]);
                }
            }
            Console.WriteLine();
        }
        static int brChetniChisla(int [] arr)
        {
            int br = 0;
            for (int i = 0; i < arr.Length; i++)
            {
                if (arr[i]%2==0)
                {
                    br++;
                }
            }
            return br;
        }
        static int[] pozicii(int n)
        {
            int[] arr = new int[n];
            for (int i = 0; i < arr.Length; i++)
            {
                if (arr[i] % 2 == 0)
                {
                    Console.WriteLine(i);
                }
            }
            return arr;
        }
    }
}