diff --git a/day16.py b/day16.py
index 373dc9c..cd3f5a2 100644
--- a/day16.py
+++ b/day16.py
@@ -1,6 +1,6 @@
 from math import prod
 from tools.aoc import AOCDay
-from typing import Any, List
+from typing import Any
 
 
 class Packet:
@@ -15,11 +15,11 @@ class Packet:
 
     def __parse(self):
         if self.p_type == 4:
-            while self.packet_str[self.p_len] == "1":
+            while True:
                 self.value = self.value * 16 + int(self.packet_str[self.p_len + 1:self.p_len + 5], 2)
                 self.p_len += 5
-            self.value = self.value * 16 + int(self.packet_str[self.p_len + 1:self.p_len + 5], 2)
-            self.p_len += 5
+                if self.packet_str[self.p_len - 5] == "0":
+                    break
         else:
             op_type = self.packet_str[self.p_len]
             self.p_len += 1