using System;

public class Program

{

    public static void Main()

    { start:

        string choice = "nothing";

        Console.Clear();

        double i = 1;

     double n2;

        Console.WriteLine("How Many Square Roots Would You Like To Calculate?"); string n = Console.ReadLine(); 

     if(double.TryParse(n, out n2))

     { Console.WriteLine("The Square Roots Are: ");

      if(n2>0)

            do {Console.Write(Math.Sqrt(i).ToString("###.###")+ ", ");

            i++; }

            while (i <=n2); }

     else if ( n2<0 ) {Console.WriteLine("Please Enter A Positive Number."); Console.ReadLine(); goto start ; }

     else {Console.WriteLine("Error, Please Enter Valid Number.");  

          Console.WriteLine("Would you like to restart the program? Press q to quit or anything else to continue");choice = Console.ReadLine(); 

           if(choice != "q" && choice != "Q"){ goto start; }}

    }

}