public static void Main()
Console.WriteLine("Hi! Give me a number");
number1 = double.Parse(Console.ReadLine());
Console.WriteLine("Give me another number");
number2 = double.Parse(Console.ReadLine());
Console.WriteLine(number1 + " is higher than " + number2);
else if (number1 < number2)
Console.WriteLine(number1 + " is lower than " + number2);
else if (number1 == number2)
Console.WriteLine("Please, start again");