02. Rectangle Area

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

namespace test_1
{
    class Program
    {
        static void Main(string[] args)
        {
            double one = double.Parse(Console.ReadLine());
            double two = double.Parse(Console.ReadLine());
            double area = one * two;
            Console.WriteLine($"{area:f2}");
        }
    }
}