Your code won't work because it has a problem.
You wrote Console.readline() instead of Console.ReadLine(), you also wrote console on some places instead of Console.
Note that C# is a case sensitive language which means that the letter case in your code is important.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…