class Main {
    public static void main(String... args) {
        double small = 1E-120;
        double medium = 0.3;
        double huge = 1E+120;
        System.out.println(String.format("%f\n%f\n%f", small, medium, huge));
        System.out.println(String.format("%e\n%e\n%e", small, medium, huge));
        System.out.println(String.format("%g\n%g\n%g", small, medium, huge));
    }
}