import java.util.Scanner;
public class Main {

    public static void main(String[] args) {

        Scanner keyboard = new Scanner(System.in);

        int number;

        System.out.println("\n SQUARE ROOT!");


        do {

            System.out.println("\n Enter a number: ");
            number = keyboard.nextInt();

            while (number >= 0) {

                System.out.println("\n The square root of " + number + " is: " + Math.sqrt(number));
                System.out.println("\n New number: ");
                number = keyboard.nextInt();

            }

            while (number < 0) {
                System.out.println("\n You can't take the square root of a negative number, silly.");
                System.out.println("\n Try again: ");
                number = keyboard.nextInt();
            }


        }while (number > -100000000) ;
    }
}