using System;

public class Program

{

    public static void Main()

    {

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

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

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

        double bitkoinToLeva=bitkoin*1168;

        double juanToDolar=juan*0.15;

        double juanToLeva=juanToDolar*1.76;

        double sumaEuro=(bitkoinToLeva+juanToLeva)/1.95;

        double komisionnaEuro=sumaEuro*komisionna/100;

        Console.WriteLine(Math.Round(sumaEuro-komisionnaEuro,2));

    }

}