Fix this code C#:

namespace ValidID

{

class ValidID

{

static void Main(string[] args)

{

int idNum;

string input;

const int LOW = 1000;

const int HIGH = 9999;

Write("Enter an ID number: ");

input = ReadLine();

idNum = Convert.ToInt32(input);

while (idNum < LOW || idNum > HIGH);

{

WriteLine("{0} is an invalid ID number", idNum);

Write("ID numbers must be ");

WriteLine("between {0} and {1} inclusive", LOW, HIGH);

Write("Enter an ID number: ");

input = ReadLine();

idNum = Convert.toInt32(input);

}

WriteLine("ID number {0} is valid", idNum);

}

}

}