diff --git a/pa/lab3/chall_jackpot.py b/pa/lab3/chall_jackpot.py
index 491e382..ef2ff18 100644
--- a/pa/lab3/chall_jackpot.py
+++ b/pa/lab3/chall_jackpot.py
@@ -1,5 +1,4 @@
 from grequests import Session
-from sys import argv
 from os import fork
 
 BASE = "http://mustard.stt.rnl.tecnico.ulisboa.pt:25652"
diff --git a/pa/lab3/spam_ln.sh b/pa/lab3/spam_ln.sh
index d66d1b2..ab4b0a9 100644
--- a/pa/lab3/spam_ln.sh
+++ b/pa/lab3/spam_ln.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
 while [ 1 -eq 1 ]; do
-	ln -s ./input ./link
-	ln -s /challenge/flag ./link
+	ln -fs ./input ./link
+	ln -fs /challenge/flag ./link
 done
diff --git a/pa/writeups b/pa/writeups
index a67c391..1b7eaa9 160000
--- a/pa/writeups
+++ b/pa/writeups
@@ -1 +1 @@
-Subproject commit a67c3913db2df515699d31ebd013a395f5c24b2f
+Subproject commit 1b7eaa9a45c6ac63a855ca5913c00ca6d3886a3f