using System;

​

public class Program

{

    //от ред 5 до ред 13 главна част на кода

    public static void Main()

    {

        int[] parking = new int[20];

        parking[8] = 1;

        Enter(parking);

        Exit(parking, 1);

        int count = Print(parking);

        Console.WriteLine(count);

    }

​

public static void Enter(int[] parking)

    {

        for (int i = 0; i < 20; i++)

        {

            if (parking[i] != 1)

            {

                parking[i] = 1;

                break;

            }

        }

    }

​

    public static int Print(int[] parking)

    {

        int count = 0;

        for (int i = 0; i < 20; i++)

        {

            if (parking[i] == 1)

            {

                count++;

            }

        }

​

        return count;

    }

    public static void Exit(int[]parking, int position)

    {

        if(parking[position] == 1)

        {

            parking[position] = 0;

        }

    }

}