using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace MyFirstProgram
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Button1_Click(object sender, EventArgs e)
        {

            float m,p;
            double s;


            float.TryParse(textBox1.Text, out m);

            s = 0;
            p = 0f;

            for (int i = 0; i <  m; i++)
            {

                s = s + Math.Pow((i + 1) * (i + 2) * (i + 3), -1);
                p = p + 1f/((i + 1f) * (i + 2f) * (i + 3f));
            }

            label2.Text = s.ToString();
            label3.Text = p.ToString();

        }

    }
}