diff --git a/Week03/sequences_burakhan_gultoplar.py b/Week03/sequences_burakhan_gultoplar.py
new file mode 100644
index 00000000..03222ce6
--- /dev/null
+++ b/Week03/sequences_burakhan_gultoplar.py
@@ -0,0 +1,29 @@
+def remove_duplicates(seq):
+    unique_values = []
+    seen = set()
+
+    for item in seq:
+        if item not in seen:
+            unique_values.append(item)
+            seen.add(item)
+
+    return unique_values
+
+
+def list_counts(seq):
+    counts = {}
+
+    for item in seq:
+        counts[item] = counts.get(item, 0) + 1
+
+    return counts
+
+
+def reverse_dict(d):
+    flipped = {}
+
+    for key in d:
+        value = d[key]
+        flipped[value] = key
+
+    return flipped