public static void Main()
Console.WriteLine("Hello! Write number.");
num = int.Parse(Console.ReadLine());
Console.WriteLine("Write another number.");
num2 = int.Parse(Console.ReadLine());
Console.WriteLine(num + " " + "is greater than" + " " + num2);
Console.WriteLine(num + " " + "is less than" + " " + num2);
Console.WriteLine("Please start again. You wrote the same number.");