static void Main(string[] args) { Console.WriteLine("Estimating ..."); var parsedTime = int.TryParse(args[0], out int result); var parsedIncrement = Enum.TryParse(args[1], true, out TimeIncrement timeIncrement); if (!parsedTime || !parsedIncrement) { Console.WriteLine("I was unable to parse your command."); Console.WriteLine("Please format your args accordingly estimate {1} {days, weeks, months}"); return; } var effort = Effort.Create(timeIncrement, result); Console.WriteLine($"Your Tshirt Size Estimate is: {effort.TshirtSize.TshirtSizeEnum.ToString()} (days: {effort.Days}, weeks: {effort.Weeks}, months: {effort.Months}"); }