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

namespace currency
{
    class Program
    {
        static void Main(string[] args)
        {
            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);
        }
    }
}