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

namespace ConsoleApplication3
{
    class Program
    {
        static void Main(string[] args)
        {
            var n = int.Parse(Console.ReadLine());
            var A = int.Parse(Console.ReadLine());
            var startEnergy = n * A * 100;

            //var energy = 0;
            double stayEnergy = 0;
            double stayDancer = (stayEnergy / A) / n;
            double energyDay1 = 0;
            double energyDay2 = 0;
            double energyDay3 = 0;
            double energyDay4 = 0;
            double sum = 0;
            for (int i = 1; i < n + 1; i++)
            {
                var hours = int.Parse(Console.ReadLine());

                if (i % 2 == 0 && hours % 2 == 0)
                {
                    energyDay1 = 68 * A;
                    sum += energyDay1;
                }
                if (i % 2 == 0 && hours % 2 != 0)
                {
                    energyDay2 = 65 * A;
                    sum += energyDay2;
                }
                if (i % 2 != 0 && hours % 2 != 0)
                {
                    energyDay3 = 30 * A;
                    sum += energyDay3;
                }
                if (i % 2 != 0 && hours % 2 == 0)
                {
                    energyDay4 = 49 * A;
                    sum += energyDay4;
                }
                stayEnergy = startEnergy - (sum);
                stayDancer = (stayEnergy / A) / n;

            }
            if ((100 - stayDancer) <= 50)
            {
                Console.WriteLine($"They feel good! Energy left: {(stayDancer):f2}");
            }
            if ((100 - stayDancer) > 50)
            {
                Console.WriteLine($"They are wasted! Energy left: {(stayDancer):f2}");
            }
            // Console.WriteLine(stayEnergy);
            // Console.WriteLine(stayDancer);
        }
    }
}