using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Menghitung Volume Prisma Segitiga");

        Console.WriteLine("Masukkan Alas Segitiga   :");

        float alas = Convert.ToInt16(Console.ReadLine());

        Console.WriteLine("Masukkan Tinggi Segitiga :");

        float ts = Convert.ToInt16(Console.ReadLine());

        Console.WriteLine("Masukkan Tinggi Prisma   :");

        float tp = Convert.ToInt16(Console.ReadLine());

        float vps=0.5f * alas * ts * tp;

        Console.Write("Volume Prisma Segitiga adalah    :"+vps);

    }

}