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

namespace Lab1
{
    class Program
    {
        static void Main(string[] args)
        {
            double d;
            float f;
            int i;
            decimal m;

            decimal w = 0;
            decimal x = 2;

            decimal p = 100;
            p = (x + p) / 2;
            w = x / p;
            for (int s = 0; s < 7; s++)
            {
                p = (w + p) / 2;
                w = x / p;
            }
            Console.WriteLine(w);
            Console.ReadLine();


            /*
            double x = 100;
            double y = Math.Sqrt(x);
            Console.WriteLine(y);
            Console.ReadLine();
            */

            /*
            checked
            Console.WriteLine("Z jakiej liczby policzyc silnie? ");
            string x = Console.ReadLine();
            int a = Convert.ToInt32(x);
          //  Console.WriteLine(a);
            int wynik=1;
            for (int y = 1; y <= a; y++)
            {
                wynik =wynik*y;
                if (y==a)
                Console.WriteLine(wynik);
            }
           unchecked
            Console.ReadLine();
            */

            /*
            for (decimal f1 = -1; f1 < 1; f1 += 0.1m)
            {
                Console.WriteLine(f1);
                if (f1 == 0)
                    Console.WriteLine("zero");
            }
            Console.ReadLine();
            */

            /*
            for (float f1 = -1; f1 < 1; f1+=0.1f)
            {
                Console.WriteLine(f1);
                if (f1 > 0)
                    Console.WriteLine("zero");
            }
            Console.ReadLine();*/

            /*double x = 10000000.17;
            Console.WriteLine(x);
            Console.ReadLine();*/

            /*double suma = 0;
            for (int i = 0; i < args.Length; i++)
            {
                Console.WriteLine(args[i]);
                suma += Convert.ToDouble(args[i]);
            }
            Console.WriteLine("suma" + suma);
            Console.ReadLine();*/


            /*
            Console.Write("a=");
            string sa = Console.ReadLine();
            double a = Convert.ToDouble(sa);
            Console.Write("b=");
            string ba = Console.ReadLine();
            double b = Convert.ToDouble(ba);

            double c = a + b;
            string sc = c.ToString();

            Console.WriteLine("c= " + sc);
            Console.ReadLine();*/

        }
    }
}