diff --git a/labs02/task09.py b/labs02/task09.py
index 9045054..ceaa49a 100644
--- a/labs02/task09.py
+++ b/labs02/task09.py
@@ -9,7 +9,13 @@ Np. leet('leet') powinno zwrócić '1337'.
 
 
 def leet_speak(text):
-    pass
+  text = str(text)
+  text = text.replace("e","3") # zamienia "e" na "3"
+  text = text.replace("l","1") # "l" na "1"
+  text = text.replace("o","0") # "o" na "0"
+  text = text.replace("t","7") # "t" na "7"
+ 
+  return text
 
 
 def tests(f):