im trying to make a thing where you get user input as a number and get the cube of it. i tried making this but it prints out the number you put in. how can i fix this? ``` namespace kodlama_bilmiyorum { class Program { static void Main(string[] args) { Console.Write("Enter a number: "); int result = Convert.ToInt32(Console.ReadLine()); Console.WriteLine(result); } static int cube(int num) { int result = num * num * num; return result; } } } ```