import java.util.Scanner;
public class Ex2 {

 public static void main(String[] args) {
  Scanner input = new Scanner(System.in);
  
  String item = "";
  int price = 0;
  int total = 0;
  
  while(price>=0)
  {
   System.out.println("Enter item: ");
   item = input.next();
   if(item.equals("Exit"))
    break;
   price = input.nextInt();
   total = total + price;
  }
  System.out.println("Total bill: "+total);

 }

}