diff --git a/Week03/sequences_beytullah_arslan.py b/Week03/sequences_beytullah_arslan.py
new file mode 100644
index 0000000..8a70e06
--- /dev/null
+++ b/Week03/sequences_beytullah_arslan.py
@@ -0,0 +1,10 @@
+def remove_duplicates(seq: list) -> list:
+    return list(set(seq))
+def lists_counts(seq: list) -> dict:
+    my_dict = dict()
+    my_dict = my_dict.fromkeys(seq,0)
+    for i in seq:
+        my_dict[i]+=1
+    return my_dict
+def reverse_dict(d: dict) ->dict:
+    return {v: k for k, v in d.items()}