import java.util.*;
import java.io.*;

// Reads doubles from a text file called "numbers.txt" and 
// keeps a cumulative sum, printing the numbers and final sum.
// NOTE: we assume here that the given file only contains doubles.
public class Numbers {

   public static void main(String[] args) throws FileNotFoundException {
      File numbersFile = new File("numbers.txt");
      Scanner input = new Scanner(numbersFile);
      
      double sum = 0.0;
      while (input.hasNext()) {
         double num = input.nextDouble();
         System.out.println(num);
         sum += num;
      }
      
      System.out.println(sum);
   }
}