using System;

public class Program

{

    public static void Main()

    {

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

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

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

        double bitcoinConversion = 1168;

        double chinaToUSD = 0.15; // usd

        double dollarConversion = 1.76; //lv

        double euroConversion = 1.95;// lv

        double bitcoinTolev = bitcoins * bitcoinConversion;

        double chnToDollar = juans * chinaToUSD;

        double dollarTolev = chnToDollar * dollarConversion; //*

        double totalNoCommission = bitcoinTolev + dollarTolev;

        double totalToeuro = totalNoCommission / euroConversion;

        double commission = totalToeuro * commissionPercent / 100; //commission isnt constant

        double finalresult2 = totalToeuro - commission;

        Console.WriteLine(finalresult2);

    }

}