import java.util.*;

public class NIC
{
    public static final String INSTRUCTIONS = "instructions.txt";

    public static void main (String[] args)
    {
        boolean debug = false;

        for (int i = 0; i < args.length; i++)
        {
            if ("-help".equals(args[i]))
            {
                System.out.println("Usage: [-debug] [-help]");

                System.exit(0);
            }

            if ("-debug".equals(args[i]))
                debug = true;
        }

        Network theNewtork = new Network(debug, INSTRUCTIONS);
    }
}
@@ -549,16 +549,153 @@
 CTIONS);
+%0A%0A        System.out.println(%22First Y value delivered by the NAT to the computer at address 0 twice in a row: %22+theNewtork.getRepeatY());
 %0A    %7D%0A%7D

Update NIC.java