import java.util.Scanner;

public class Program3{
    public static void main(String[] args){
	int n, sum_of_squares=0, sum=0, square_of_sum;
	Scanner scan = new Scanner(System.in);
	System.out.print("Enter a positive integer: ");
	n = scan.nextInt();
	for (int i=1; i<=n; i++){
	    sum += i;
	    sum_of_squares += i*i;
	}
	square_of_sum = sum*sum;
	System.out.println("The square of the sum of the first " + n
			   + " positive integers is " 
			   + square_of_sum + ".");
	System.out.println("The sum of the squares of the first "+n+
			   " positive integers is " 
			   + sum_of_squares + ".");
	System.out.println("Their difference is " + 
			   (square_of_sum - sum_of_squares) + ".");
    }
}