public static void Main()
Console.WriteLine("Hi, please write me a number");
number= int.Parse(Console.ReadLine());
Console.WriteLine("Thanks,now write another number");
number2= int.Parse(Console.ReadLine());
Console.WriteLine("Finilly just write another number");
number3= int.Parse(Console.ReadLine());
if(number == number2 || number2 == number3 || number == number3)
Console.WriteLine("The number must be diferent please try again");
else if(number > number2 && number > number3)
Console.WriteLine("The first number is the highest");
else if(number2 > number && number2 > number3)
Console.WriteLine("The second number is the highest");
else if(number3 > number && number3 > number2)
Console.WriteLine("The third number is the highest");