using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Type in a number you want to find the significant digits of:");

            int num = int.Parse(Console.ReadLine());

            int sigfig = 1;

​

            if (num > 10)

            {

                while (num > 10)

                {

                    sigfig = sigfig + 1;

                    num = numcalc(num);

                }

            }

            else

            {

                Console.WriteLine("The number of Sig-figs are " + sigfig);

            }

    }

    public static int numcalc(int num)

        {

            num = num / 10;

            return num;

        }

​

}