import java.util.*;
class Main{
    public static void main(String args[]){
    Scanner sc=new Scanner(System.in);
    if(!sc.hasNextDouble()){
   System.out.println("Invalid input");
       return;
    }
    else{
        System.out.println("Invalid input");
       return;
    double a=sc.nextDouble();
   String s=sc.next();
   if(a<=0){
       System.out.println("Invalid input");
       return;
   }
   if(s.equals("credit")){
           double n=a+((2/a)*100.0);
           System.out.printf("$%.2f",n);
   }
     else if(s.equals("debit")){
           double b=a+1;//((1/a)*100.0);
           System.out.printf("$%.2f",b);
     }
     else if(s.equals("PayPal")){
           System.out.printf("$%.2f",a);
     }
    else{
           System.out.println("Invalid input");
   }
    }
    }
}