using System.Reflection.Emit;

namespace MagiMiit2023
{
    internal class Program
    {
        static void Main(string[] args)
        {
            int[] randList = new int[32];
            Random randGen = new Random();

            PopulateArray(randList, randGen);

            PrintPositive(randList);

            int[] numbers = new int[7];
            InputArray(numbers);
            Console.WriteLine(SumNegativeOrGreateThan200(numbers));

            Console.Write("Please, enter a = ");
            int a = int.Parse(Console.ReadLine());
            Console.Write("Please, enter b = ");
            int b = int.Parse(Console.ReadLine());
            Console.Write("Please, enter c = ");
            int c = int.Parse(Console.ReadLine());

            Console.WriteLine(Sred(Math.Abs(a - b)) - Sred(c + a));
        }

        static void PopulateArray(int[] array, Random generator)
        {
            for (int i = 0; i < array.Length; i++)
            {
                array[i] = generator.Next(0, 50);
            }
        }

        static void PrintPositive(int[] array)
        {
            foreach (var item in array)
            {
                if (item >= 0) Console.WriteLine(item);
            }
        }

        static void InputArray(int[] array)
        {
            for (int i = 0; i < array.Length; i++)
            {
                Console.Write($"Please, enter a value for element[{i}] = ");
                array[i] = int.Parse(Console.ReadLine());
            }
        }

        static int SumNegativeOrGreateThan200(int[] array)
        {
            int sum = 0;
            for (int i = 0; i < array.Length; i++)
            {
                if (array[i] <= 0 || array[i] > 200)
                {
                    sum += array[i];
                }
            }
            return sum;
        }

        static double Sred(int k)
        {
            int sum = 0;
            Random randGen = new Random();
            int randomNumber;
            int counter = 0;
            for (int i = 0; i < k; i++)
            {
                randomNumber = randGen.Next();
                if (randomNumber >= 10 && randomNumber <= 100)
                {
                    sum += randomNumber;
                    counter++;
                }
            }
            return (counter > 0) ? sum / counter : 0;
        }
    }
}