using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace _1.Problem_MathExpression
{
    class Program
    {
        static void Main()
        {
            decimal N, M, P;
            decimal minInput=-10000000;
            decimal maxInput=10000000;
            decimal result;

            N = decimal.Parse(Console.ReadLine());
            M = decimal.Parse(Console.ReadLine());
            P = decimal.Parse(Console.ReadLine());
            if (N >= minInput && N <= maxInput && M >= minInput && M != 0 && M <= maxInput && P >= minInput && P != 0 && P <= maxInput)
            {

                result = (((N*N) + (1 / (M * P)) + 1337) / (N - (128.523123123M * P))) + (decimal)Math.Sin((double)((int)(M % 180)));
                Console.WriteLine("{0:0.000000}",result);
            }
            else
            {
                Console.WriteLine("Wrong entry!");
            }
        }
    }
}