diff --git a/Week03/pyramid_muhammedsalih_yesilay.py b/Week03/pyramid_muhammedsalih_yesilay.py
new file mode 100644
index 00000000..c8e1518b
--- /dev/null
+++ b/Week03/pyramid_muhammedsalih_yesilay.py
@@ -0,0 +1,12 @@
+def calculate_pyramid_height(number_of_blocks):
+    height = 0
+
+    for i in range(1, number_of_blocks + 1):
+        if number_of_blocks >= i:
+            number_of_blocks -= i
+            height += 1
+        else:
+            break
+
+    #print("Kalan blok sayısı:", number_of_blocks)
+    return height