namespace ConsoleApp7 { internal class Program { static void Main(string[] args) {

        double Sn = 0;
        int n = GetSn(1);
        Console.WriteLine(n);
        Console.ReadKey();
       int  GetSn(int x)
        {
            int i = 1;
          
            
                for (i = 1; i < 100000; i++)
                {
                    Sn = Sn +(double) 1 / i;
                if (Sn > x)
                {
                    break;
                }

                }
            return i;
            }
            
        

    }
}

}