diff --git a/Week03/pyramid_tarik_bozgan.py b/Week03/pyramid_tarik_bozgan.py
new file mode 100644
index 00000000..fa762647
--- /dev/null
+++ b/Week03/pyramid_tarik_bozgan.py
@@ -0,0 +1,7 @@
+def calculate_pyramid_height(number_of_blocks):
+    height = 0
+    while(number_of_blocks >= 0):
+        height += 1
+        number_of_blocks -= height
+    return height - 1
+
diff --git a/Week03/sequences_tarik_bozgan.py b/Week03/sequences_tarik_bozgan.py
new file mode 100644
index 00000000..1ba02067
--- /dev/null
+++ b/Week03/sequences_tarik_bozgan.py
@@ -0,0 +1,23 @@
+def remove_duplicates(seq):
+    result = []
+    for item in seq:
+        if item not in result:
+            result.append(item)
+    return result
+
+
+def list_counts(seq):
+    counts = {}
+    for item in seq:
+        if item in counts:
+            counts[item] += 1
+        else:
+            counts[item] = 1
+    return counts
+
+
+def reverse_dict(d):
+    reversed_dict = {}
+    for key, value in d.items():
+        reversed_dict[value] = key
+    return reversed_dict
\ No newline at end of file