diff --git a/Week03/pyramid_rafet_taskin.py b/Week03/pyramid_rafet_taskin.py
new file mode 100644
index 00000000..cb8d928a
--- /dev/null
+++ b/Week03/pyramid_rafet_taskin.py
@@ -0,0 +1,7 @@
+def calculate_pyramid_height(blocks):
+    layer = 0
+    while blocks >= (layer + 1):
+        layer += 1
+        blocks -= layer
+
+    return layer
diff --git a/Week03/sequences_rafet_taskin.py b/Week03/sequences_rafet_taskin.py
new file mode 100644
index 00000000..d20173bd
--- /dev/null
+++ b/Week03/sequences_rafet_taskin.py
@@ -0,0 +1,17 @@
+def remove_duplicates(l):
+    return list(dict.fromkeys(l))
+
+def list_counts(l):
+    counts = {}
+    for item in l:
+        if item in counts:
+            counts[item] += 1
+        else:
+            counts[item] = 1
+    return counts
+
+def reverse_dict(d):
+    reversed_d = {}
+    for key, value in d.items():
+        reversed_d[value] = key
+    return reversed_d