diff --git a/app/main.py b/app/main.py
index f07695b9b..d6fbd6b7a 100644
--- a/app/main.py
+++ b/app/main.py
@@ -15,5 +15,9 @@
     "Sergio": 3,
 }
 collection_of_coins = {1, 2, 25}
+sorted_variables = {
+    "mutable": [my_favourite_films, marks, collection_of_coins, ],
+    "immutable": [lucky_number, pi , one_is_a_prime_number, name, profile_info,]
+}
+
 
-# write your code here