diff --git a/Week03/sequences_ozge_ucar.py b/Week03/sequences_ozge_ucar.py
new file mode 100644
index 0000000..236d77a
--- /dev/null
+++ b/Week03/sequences_ozge_ucar.py
@@ -0,0 +1,17 @@
+def remove_duplicates(seq: list) -> list:
+    no_duplicate = set()
+    result = []
+    for i in seq:
+        if i not in no_duplicate:
+            no_duplicate.add(i)
+            result.append(i)
+    return result
+
+def list_counts(seq: list) -> dict:
+    counts = {}
+    for i in seq:
+        counts[i]=counts.get(i, 0) + 1
+    return counts
+
+def reverse_dict(d: dict)->dict:
+    return {value: key for key, value in d.items()}