using System;

​

public class Program

{

    public static void Main(string[] args)

    {

                int lowest = 0, highest = 0, input;

                Console.Write("Enter numbers lenght: ");

                int lenght = Int32.Parse(Console.ReadLine());

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

        {

            Console.Write("Enter number:");

            input = Int32.Parse(Console.ReadLine());

            if (i == 0) lowest = highest = input;

            else

            {

                 if (lowest > input) lowest = input;

                if (highest < input) highest = input;

            }

        }

        Console.WriteLine("Lowest - {0}, Highest - {1}", lowest, highest);

    }

}