using System;

​

namespace Area_rectangle

{

    public class Program

    {

        public static void Main(string[] args)

        {

            Console.WriteLine("Enter count of numbers, please.");

            int count = int.Parse(Console.ReadLine());

            if (count <= 0) 

            {

                Console.WriteLine("Please enter valid number.");

                Environment.Exit(0); // end of program

            }

            Console.WriteLine("Enter the numbers to compare.");

            int maxNum = int.Parse(Console.ReadLine());

            for (int i = 0; i < count - 1; i ++)

            {

                int nextNum = int.Parse(Console.ReadLine());

                if (nextNum > maxNum)

                {

                    maxNum = nextNum;

                }

            }

            Console.WriteLine(String.Format("The max number is: {0}.",  maxNum));

        }

    }

}