import java.util.*;

public class Exercise
{
    public static void main(String[] args)
    {
        double[] a = new double[20];
        int index;
       Scanner keyboard = new Scanner(System.in);
       System.out.println("Enter 20 numbers:");
        for (index = 0; index < a.length; index++)
            a[index] = keyboard.nextDouble( );
        System.out.println(
           "The numbers and differences from last number are:");
        for (index = 0; index < a.length; index++)
            System.out.println(a[index]
             + " differs from last by "
             + (a[a.length - 1] - a[index]));
    }
}