Workout

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

namespace ConsoleApplication25
{
    class Program
    {
        static void Main(string[] args)
        {
            int N = int.Parse(Console.ReadLine());
            double M = double.Parse(Console.ReadLine());
            double Allkm = M;
            for(int i=1; i<=N; i++)
            {
                int k = int.Parse(Console.ReadLine());
                M = M + (M / 100) * k;
                Allkm += M;
            }
            if(Allkm<1000)
            {
                Console.WriteLine("Sorry Mrs. Ivanova, you need to run {0} more kilometers",Math.Ceiling(1000-Allkm));
            }
            else if(Allkm>=1000)
            {
                Console.WriteLine("You've done a great job running {0} more kilometers!",Math.Ceiling(Allkm-1000));
            }
        }
    }
}