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

class Program
{
    static void Main()
    {
        int allDataToDownLoad = int.Parse(Console.ReadLine());
        int priceForCinemaMovie = int.Parse(Console.ReadLine());
        int wifeSpending = int.Parse(Console.ReadLine());
        double downloadTime = (allDataToDownLoad / 2d);
        downloadTime /= 60d;
        downloadTime /= 60d;
        double wifeSpendingsForDownloadTime = downloadTime * wifeSpending;
        double moviesDownloaded = (allDataToDownLoad / 1500d);
        double cinemaPrice = moviesDownloaded * priceForCinemaMovie;
        if (wifeSpendingsForDownloadTime <= cinemaPrice)
        {
            Console.WriteLine("mall -> {0:f2}lv",wifeSpendingsForDownloadTime);
        }
        else
        {
            Console.WriteLine("cinema -> {0:f2}lv", cinemaPrice);
        }
    }
}