diff --git a/Week03/sequences_beytullah_arslan.py b/Week03/sequences_beytullah_arslan.py
new file mode 100644
index 00000000..846c20ed
--- /dev/null
+++ b/Week03/sequences_beytullah_arslan.py
@@ -0,0 +1,22 @@
+def remove_duplicates(seq: list) -> list:
+    return list(set(seq))
+  
+def list_counts(seq: list) -> dict:
+    counts = dict.fromkeys(seq, 0)
+    for item in seq:
+        counts[item] += 1      
+    return counts
+  
+def  reverse_dict(seq: dict) -> dict:
+    reversed_dict = {}  
+    for key, value in seq.items():
+        reversed_dict[value] = key
+    return reversed_dict
+
+
+
+
+
+
+
+