TradeCommission

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

namespace _08_turgovski
{
    class Program
    {
        static void Main(string[] args)
        {
            string town = Console.ReadLine();
            double sales = double.Parse(Console.ReadLine());
            double commission = -1;
            if (town == "Sofia")
            {
                if (sales >= 0 && sales <= 500) Console.WriteLine(sales * 0.05);
                else if (sales > 500 && sales <= 1000) Console.WriteLine(sales * 0.07);
                else if (sales > 1000 && sales <= 10000) Console.WriteLine(sales * 0.08);
                else if (sales > 10000) Console.WriteLine(sales * 0.12);
            }
            else if (town == "Varna" )
            {
                if (sales >= 0 && sales <= 500) Console.WriteLine(sales * 0.045);
                else if (sales > 500 && sales <= 1000) Console.WriteLine(sales * 0.075);
                else if (sales > 1000 && sales <= 10000) Console.WriteLine(sales * 0.10);
                else if (sales > 10000) Console.WriteLine(sales * 0.13);
            }
            else if (town == "Plovdiv" )
            {
                if (sales >= 0 && sales <= 500) Console.WriteLine(sales * 0.055);
                else if (sales > 500 && sales <= 1000) Console.WriteLine(sales * 0.08);
                else if (sales > 1000 && sales <= 10000) Console.WriteLine(sales * 0.12);
                else if (sales > 10000) Console.WriteLine(sales * 0.145);
            }
            if (commission >= 0)
            {
                Console.WriteLine("{0:f2}", sales * commission);
            }
            else
            {
                Console.WriteLine("error");
            }
        }
    }
}