import java.io.IOException; import java.util.Scanner; import java.util.Locale;

public class Main {

public static void main(String[] args) throws IOException {

 Scanner input = new Scanner (System.in);
 Locale.setDefault(Locale.US);

  double  cal = 0;

  double num = input.nextDouble();

  double QTD = input.nextDouble();

  if (num == 1 ){
      cal = 4.00;
  }if(num == 2 ){
      cal = 4.50;
  }if(num == 3 ){
      cal = 5.00;
  }if(num == 4 ){
      cal = 2.00;
  }if(num == 5 ){
      cal = 1.50;
  }

  double soma = cal * QTD;
  System.out.printf("Total: R$ %.2f%n" , soma);

}

}