package advancedConditionalStatements;

import java.util.Scanner;

public class P12TradeComissions {
  public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String town = scanner.nextLine();
        double sales = Double.parseDouble(scanner.nextLine());
        boolean isValid=true;
        double commission = 0;
        if (town.equals("Sofia")) {
            if (sales >= 0 && sales <= 500) {
                commission = sales * 0.05;

            } else if (sales > 500 && sales <= 1000) {
                commission = sales * 0.07;

            } else if (sales > 1000 && sales <= 10000) {
                commission = sales * 0.08;

            } else if (sales > 10000) {
                commission = sales * 0.12;
            }
            else {
                isValid = false;
            }
        }
        else if (town.equals("Varna")) {
            if (sales >= 0 && sales <= 500) {
                commission = sales * 0.045;
            } else if (sales > 500 && sales <= 1000) {
                commission = sales * 0.075;
            } else if (sales > 1000 && sales <= 10000) {
                commission = sales * 0.10;
            } else if (sales > 10000) {
                commission = sales * 0.13;
            } else {
                isValid = false;
            }
        }
        else if (town.equals("Plovdiv")) {
            if (sales >= 0 && sales <= 500) {
                commission = sales * 0.055;
            } else if (sales > 500 && sales <= 1000) {
                commission = sales * 0.08;

            } else if (sales > 1000 && sales <= 10000) {
                commission = sales * 0.12;
            } else if (sales > 10000) {
                commission = sales * 0.145;
            }
            else {
                isValid = false;
            }
        }
        else {
            isValid = false;
        }
        if (isValid==true) {
          System.out.printf("%.2f", commission);
        }
        else {
          System.out.println("error");
        }
    }
}