using System;

​

public class Program

{

    public static void Main()

    {

        string choice = "kkshkfhkshkhfsk";

        while (choice != "q" && choice != "Q")

        {

            Console.WriteLine("Please enter a number you would like to see the square root of.");

            string ans = Console.ReadLine();

            double sans;

            if (double.TryParse(ans, out sans))

            {

                if (sans > 0)

                {

                    int i = 1;

                    do

                    {

                        double s = Math.Sqrt(i);

                        Console.WriteLine("The square root of " + i + " is " + s.ToString("##.###") + " ");

                        i++;

                    }

                    while (i <= sans);

                }

                else if (sans < 0)

                {

                    Console.WriteLine("Please enter a positive number.");

                    Console.WriteLine();

                }

            }

                Console.WriteLine();

                Console.WriteLine("Press q to quit or anything else to restart.");

                choice = Console.ReadLine();

        }

    }

}