import java.util.Scanner;

public class Commissions {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);

        String town = scan.nextLine();
        double sBulk =Double.parseDouble(scan.nextLine());

        switch(town){
            case"Sofia":
                if(sBulk>=0 && sBulk<=500){
                    sBulk= sBulk * 0.05;
                }else if(sBulk>500 && sBulk<=1000){
                    sBulk = sBulk * 0.07;
                }else if(sBulk>1000 && sBulk <=10000){
                    sBulk =sBulk  * 0.08;
                }else{
                    sBulk = sBulk * 0.12;
                } System.out.printf("%.2f", sBulk);
                break;
            case"Varna":
                if(sBulk>=0 && sBulk<=500){
                    sBulk= sBulk* 0.045;
                }else if(sBulk>500 && sBulk<=1000){
                    sBulk = sBulk * 0.075;
                }else if(sBulk>1000 && sBulk <=10000){
                    sBulk = sBulk * 0.10;
                }else{
                    sBulk = sBulk * 0.13;
                } System.out.printf("%.2f", sBulk);
                break;

            case"Plovdiv":
                if(sBulk>=0 && sBulk<=500){
                    sBulk= sBulk* 0.055;
                }else if(sBulk>500 && sBulk<=1000){
                    sBulk = sBulk * 0.08;
                }else if(sBulk>1000 && sBulk <=10000){
                    sBulk = sBulk * 0.12;
                }else{
                    sBulk = sBulk * 0.145;
                } System.out.printf("%.2f", sBulk);
                break;
            default:
                System.out.println("error");

        }
    }
}