import java.util.Scanner;
public class Hoover
{
    public static void main(String[] args)
    {
        Scanner vacuum = new Scanner(System.in);
        System.out.print("Enter a integer:  ");
        String foo = vacuum.next();
        double x = Double.parseDouble(foo);
        System.out.printf("The square of %s is %s.\n", x, x*x);
    }
}