diff --git a/3. Composing Version Messages/exercises.py b/3. Composing Version Messages/exercises.py
index 29a1b8c..cdf7cee 100644
--- a/3. Composing Version Messages/exercises.py	
+++ b/3. Composing Version Messages/exercises.py	
@@ -2,6 +2,8 @@
 import socket
 from random import randint
 from lib import compute_checksum
+from hashlib import sha256
+from lib import bytes_to_ip, read_varstr, read_varint, bytes_to_bool, read_version_payload
 
 ZERO = b'\x00'
 IPV4_PREFIX = b"\x00" * 10 + b"\x00" * 2
@@ -109,4 +111,4 @@ def handshake(address):
     sock.sendall("OUR VERACK HERE")
     print("Sent verack")
 
-    return sock, stream
\ No newline at end of file
+    return sock, stream