Fix four flaws in the following program.

// Fix four flaws // Note: there are more than four flaws!

static void Main(string[] args) { string userName = Console.ReadLine(); DoLotsOfstuff(userName); }

static void DoLotsOfstuff(string n) { bool guest; int i;

if (n = "Student") { Console.WriteLine("Welcome " + n); guest = false; } else if (n = "Admin") { Console.WriteLine("Welcome " + n); guest = false; } else { Console.WriteLine("Welcome " + n); guest = true; }

for (i = 0; i < len(n); i++) Console.Write(n[i]); Console.WriteLine(); }

You will need to retype this program into C#, and then make changes. For ease of grading, please mark your changes with comments, such as:

// Change 2: Changed the variable name from n