Piggy Bank

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

namespace PiggyBank
{
    class PiggyBank
    {
        static void Main(string[] args)
        {
            double priceOfTheTank = double.Parse(Console.ReadLine());
            double partiesDays = double.Parse(Console.ReadLine());
            double normalDays = 30 - partiesDays;
            double savings = (normalDays * 2) - (partiesDays * 5);
            double neededMonts = priceOfTheTank / savings;
            double years = neededMonts / 12;
            double monts = neededMonts % 12;
            if (monts < 0)
            {
                Console.WriteLine("never");
            }
            else
            {
                Console.WriteLine("{0} years, {1} months",Math.Floor(years) ,Math.Ceiling((double)monts));
            }
        }
    }
}