diff --git a/Week03/sequences_beytullah_arslan.py b/Week03/sequences_beytullah_arslan.py
new file mode 100644
index 000000000..2ab93add9
--- /dev/null
+++ b/Week03/sequences_beytullah_arslan.py
@@ -0,0 +1,14 @@
+def remove_duplicates(seq: list) -> list:
+    return list(set(seq))
+
+def list_counts(seq: list) -> dict:
+    dictionary = dict.fromkeys(seq, 0)
+    for item in seq:
+        dictionary[item] += 1
+    return dictionary
+
+def reverse_dict(d: dict) -> dict:
+    new_dict = {}
+    for key, value in d.items():
+        new_dict[value] = key
+    return new_dict