import java.util.*;
abstract class Loan
{
    double LoanAmt;
    Loan(double LoanAmt)
    {
        this.LoanAmt=LoanAmt;
    }
    abstract double calculate();
}
class Homeloan extends Loan
{
    Homeloan(double LoanAmt)
    {
        super(LoanAmt);
    }
    double calculate()
    {
        System.out.print(LoanAmt*0.05);
        return 0;
    }
}
class Personalloan extends Loan
{
    Personalloan(double LoanAmt)
    {
        super(LoanAmt);
    }
    double calculate()
    {
        System.out.print(LoanAmt*0.10);
        return 0;
    }
}
class Main
{
    public static void main(String[] args)
    {
        Scanner s=new Scanner(System.in);
        double LoanAmt=s.nextDouble();
        s.nextLine();
        String type=s.nextLine();
        if(LoanAmt<=0)
        {
            System.out.print("Invalid input");
            return;
        }
        if(type.equalsIgnoreCase)
        {
            Homeloan h=new Homeloan(LoanAmt);
            h.calculate();
        }
        else if(type.equalsIgnoreCase("PersonalLoan"))
        {
            Personalloan p=new Personalloan(LoanAmt);
            p.calculate();
        }
        else
        {
            System.out.print("Invalid input");
        }
    }
}