diff --git a/app/main.py b/app/main.py
index f07695b9b..0011db32e 100644
--- a/app/main.py
+++ b/app/main.py
@@ -16,4 +16,20 @@
 }
 collection_of_coins = {1, 2, 25}
 
-# write your code here
+# Create dictionary
+sorted_variables = {
+    "mutable": [],
+    "immutable": []
+}
+
+# Put variables into a list
+variables = {"alucky_number": lucky_number, "pi": pi, "one_is_a_prime_number": one_is_a_prime_number, "cname": name, "my_favourite_films": my_favourite_films, "profile_info": profile_info, "marks": marks, "collection_of_coins": collection_of_coins}
+
+# Check each variable type
+for name, value in variables.items():
+    if type(value) in [list, dict, set]:
+        sorted_variables["mutable"].append(name)
+    else:
+        sorted_variables["immutable"].append(name)
+
+print(sorted_variables)