using System;
using System.Collections.Generic;
using System.Linq;
using System.Numerics;
using static System.Math;

namespace SortItems
{
    class Program
    {
        static void Main(string[] args)
        {
            var n = Console.ReadLine().Split().Select(decimal.Parse).ToArray();
            var v = n[0];
            var t = n[1];

            Console.WriteLine(Floor( v * t ));

        }
    }
}