using System;

namespace Biggest_of_Three
{
    class Program
    {
        static void Main(string[] args)
        {
            double num1 = double.Parse(Console.ReadLine());
            double num2 = double.Parse(Console.ReadLine());
            double num3 = double.Parse(Console.ReadLine());

            double max = Math.Max(num1, (Math.Max(num2, num3)));

            Console.WriteLine(max);
        }
    }
}