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

namespace ConsoleApp165
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            double m = double.Parse(Console.ReadLine());

            double totak = m;
            double sum = 0d;
            double runn = 0d;

            for (int i = 0; i < n; i++)
            {
                int per = int.Parse(Console.ReadLine());
                totak = totak + totak * per / 100;
                sum = sum + totak;
            }
            sum = sum + m;

            if (sum >= 1000)
            {
                Console.WriteLine($"You've done a great job running {Math.Ceiling(sum - 1000)} more kilometers!");
            }
            else
            {
                runn = 1000 - sum;
                Console.WriteLine($"Sorry Mrs. Ivanova, you need to run {Math.Ceiling(runn)} more kilometers");
            }

        }
    }
}