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

namespace _53_Workout
{
    class Program
    {
        static void Main(string[] args)
        {
            int N = int.Parse(Console.ReadLine());
            int M = int.Parse(Console.ReadLine());


            double totalKm = M;
            double kmSum = 0;

            for (int i = 1; i <= N; i++)
            {
                double kmInPercent = double.Parse(Console.ReadLine());

                totalKm = totalKm + totalKm * (kmInPercent / 100);
                kmSum += totalKm;
            }
            if (totalKm < 1000)
            {
                Console.WriteLine($"Sorry Mrs. Ivanova, you need to run {Math.Ceiling(1000 - kmSum)} more kilometers");
            }
            else
            {
                Console.WriteLine($"You've done a great job running {Math.Ceiling(kmSum - 1000)} more kilometers!");
            }
        }
    }
}