import java.util.Scanner;

public class CommaNumber {

    public static void main(String[] args) {

        double x; // Declaring a double

        Scanner keyboardinput = new Scanner(System.in); // Input a double with the keyboard
        System.out.println("Write a number with a comma."); // Message for user
        x = keyboardinput.nextDouble();
        double y = 1.0 / x; // Declare another double equal to 1.0 over x

        System.out.println(x);
        System.out.println(y);
        System.out.println(x*y);


    }

}