Triangle_Area

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Triangle_Area
{
    class Program
    {
        static void Main(string[] args)
        {
           float a = float.Parse(Console.ReadLine());
           float h = float.Parse(Console.ReadLine());

            var area = (a * (h / 2));
            Math.Round(area, 2);
            Console.WriteLine("area=" + area );
        }
    }
}