using System;

using System.Threading.Tasks;

public class Program

{

        public static void Main(string[] args)

        {

            DoSomeMatOps();

            // Console.WriteLine("Done");

        }

​

        private static void DoSomeMatOps()

        {

            try

            {

                WriteResult(0);

            }

            catch (Exception)

            {

                Console.WriteLine("It's not possible to provide a result");

            }

        }

​

        private static async Task WriteResult(int number)

        {

            int result = 100 / number;

            Console.WriteLine("The result is {0}", number);

        }

}