public static void Main()
Console.WriteLine("Carlos Ivan Lopez Aldava");
string username, password;
Console.Write("\n\nCheck username and password :\n");
Console.Write("N.B. : Defaule username and password is : username and password\n");
Console.Write("---------------------------------\n");
Console.Write("Input a username: ");
username = Console.ReadLine();
Console.Write("Input a password: ");
password = Console.ReadLine();
if( username == "username" && password == "password" )
while (( username != "username" || password != "password" )
Console.Write("\nLogin attemp more than three times. Try later!\n\n");
Console.Write("\nPassword entered successfull!\n\n"); }