import java.util.*;
class Main{
    public static void main(String[] args){
if(!s.hasNextDouble()){
    System.out.println("Invalid input");
    return;
}
double amt=s.nextDouble();s.nextLine();
if(!s.hasNextLine()){
    System.out.println("Invalid input");
    return;
}
String type=s.nextLine().trim();
if(amt<=0){
    System.out.println("Invalid input");
    return;
}
 double interest;
         if(type.equalsIgnoreCase("HomeLoan"))
         interest=amt*0.05;
         else if(type.equalsIgnoreCase("personlLoan"))
         interest=amt*0.10;
         else{
             System.out.println("Invalid input");
           return;
}
  System.out.printf("%.1f\n",interest);
    }
}