//// Project #1:  Compute the amount due for purchases (after tax).
//// Zhilin Kuang
import java.util.Scanner;
class Main {
  public static void main(String[] args) {
  	Scanner input = new Scanner (System.in);
  	double amount;
  	double taxRate=  0.08625;
  	int pen, pap, era;
  	
  	System.out.print ("Please enter the amount of pencils you need: ");
  	pen = input.nextInt ();
  	System.out.print ("Please enter the amount of sheets of paper you need: ");
  	pap = input.nextInt ();
  	System.out.print ("Please enter the amount of erasers you need: ");
  	era = input.nextInt ();
  	amount = (pen*0.15 + pap * 0.01 + era * 0.5) * (1 + taxRate) ;
  	double roundOff = (double) Math.round(amount *100)/100 ;
  	System.out.println ("The total amount due: $" + roundOff + ".");
  
  }
}