using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter three numbers");

        double a = double.Parse(Console.ReadLine());

        double b = double.Parse(Console.ReadLine());

        double c = double.Parse(Console.ReadLine());

        double d = double.Parse(Console.ReadLine());

        double e = double.Parse(Console.ReadLine());

        if (a >= b && a >= c && a >= d && a >= e)

            {

                Console.WriteLine(a);

            }

        else if (b >= a && b >= c && b >= d && b >= e)

            {

                Console.WriteLine(b);

            }

        else if (c >= a && c >= b && c >= d && c >= e)

            {

                Console.WriteLine(c);

            }

        else if (d >= a && d >= b && d >= c && d >= e)

            {

                Console.WriteLine(d);

            }

        else 

            {

                Console.WriteLine(e);

            }

    }

}