Piggy Bank

using System;

class piggybank
{
    static void Main()
    {
        int pTank = int.Parse(Console.ReadLine());
        int pDays = int.Parse(Console.ReadLine());
        int pBank = ((30 - pDays) * 2) - (pDays * 5);
        if (pDays >= 9)
        {
            Console.WriteLine("never");
            return;
        }
        double totaMonths = (double)pTank / pBank;
        int result = (int)Math.Ceiling(totaMonths);


        int years = result / 12;
        int months2 = result % 12;

        Console.WriteLine("{0} years, {1} months", years, months2);
    }
}