using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace Task_01

{

    class Program

    {

        static void Main(string[] args)

        {

            var n = int.Parse(Console.ReadLine());

            double min = 1000, max = -1000, sum = 0;

            int[] arr = new int[n];

            for (int i = 0; i < n; i++) arr[i] = int.Parse(Console.ReadLine());

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

            {

                sum = sum + arr[i];

                if (arr[i] < min) min = arr[i];

                if (arr[i] > max) max = arr[i];

            }

                Console.WriteLine(min);

                Console.WriteLine(max);

                Console.WriteLine(sum);

                Console.WriteLine(sum / n);

            }

        }

    }

​