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

namespace energyLoss
{
    class Program
    {
        static void Main(string[] args)
        {
            double trainingDays = double.Parse(Console.ReadLine());
            double numberOfDancers = double.Parse(Console.ReadLine());
            double allEnergyOfDancers = 100 * trainingDays * numberOfDancers;
            double lossEnergy = 0;
            for (int i = 1; i <= trainingDays; i++)
            {
                double trainingHours = double.Parse(Console.ReadLine());
                if (i % 2 == 0 && trainingHours % 2 == 0)
                {
                    lossEnergy += numberOfDancers * 68;
                }
                else if (i % 2 != 0 && trainingHours % 2 != 0)
                {
                    lossEnergy += numberOfDancers * 30;
                }
                else if (i % 2 == 0 && trainingHours % 2 != 0)
                {
                    lossEnergy += numberOfDancers * 65;
                }
                else if (i % 2 != 0 && trainingHours % 2 == 0)
                {
                    lossEnergy += numberOfDancers * 49;
                }

            }
            double remainEnergy = allEnergyOfDancers - lossEnergy;
            double remainEnergyForDayPerDancer = remainEnergy / numberOfDancers / trainingDays;
            if (lossEnergy <= allEnergyOfDancers / 2)
            {
                Console.WriteLine($"They feel good! Energy left: {remainEnergyForDayPerDancer:f2}");
            }
            else
            {
                Console.WriteLine($"They are wasted! Energy left: {remainEnergyForDayPerDancer:f2}");
            }
        }
    }
}