using System;

public class Program

{

    public static void Main()

    {

        //FORMATOS DE SALIDA

double BASE, ALTURA, RESUL;

string linea;

Console.Write("DIGITE LA BASE :");

linea = Console.ReadLine();

BASE = double.Parse(linea);

Console.Write("DIGITE LA ALTURA:");

linea = Console.ReadLine();

ALTURA = double.Parse(linea);

RESUL = (BASE * ALTURA) / 2;

Console.WriteLine("AREA TRIANGULO :" + String.Format("{0:####.00}", RESUL ));

Console.WriteLine("AREA TRIANGULO :" + String.Format("{0:c}", RESUL));

Console.WriteLine("AREA TRIANGULO :" + String.Format("{0:f}", RESUL));

Console.WriteLine("AREA TIANGRULO :" + String.Format("{0:g}", RESUL));

Console.WriteLine();

Console.WriteLine("HOY ES: "+ String.Format("Hoy es {0:F}", DateTime.Now));

Console.WriteLine("HOY ES: " + String.Format("Hoy es {0:dddd}{0:dd/MM/yyy}", DateTime.Now));

Console.Write("Pulse una Tecla:");

Console.ReadLine();

    }

}