diff --git a/Week03/pyramid_beytullah_arslan.py b/Week03/pyramid_beytullah_arslan.py
new file mode 100644
index 000000000..d1747ea6d
--- /dev/null
+++ b/Week03/pyramid_beytullah_arslan.py
@@ -0,0 +1,10 @@
+def calculate_pyramid_height(number_of_blocks):
+    total = 0
+    height = 0
+    for i in range(1, number_of_blocks + 1):
+        total += i
+        if total > number_of_blocks:
+            break
+        else:
+            height = i
+    return height