diff --git a/IS/Lab/Lab1/q4_hill.py b/IS/Lab/Lab1/q4_hill.py
index 9093626..9f5c540 100644
--- a/IS/Lab/Lab1/q4_hill.py
+++ b/IS/Lab/Lab1/q4_hill.py
@@ -1,4 +1,6 @@
-def print_mat(hk):
+def hill_en(ptext,hk):
+
+def hill_de(ptext,hk):
 
 def main():
     ptext = input("Kindly enter your desired plaintext: ")
@@ -6,7 +8,7 @@ def main():
 
     print("Welcome to the Hill cipher.")
     print("Plaintext: ", ptext)
-    print("Hill Key: ", print_mat(hk))
+    print("Hill Key: ", hk)
     ctext = hill_en(ptext, hk)
     print("Ciphertext: ", ctext)
     decrypted_text = hill_de(ctext, hk)