diff --git a/Week03/shifted_damla_ergenekon.py b/Week03/shifted_damla_ergenekon.py
new file mode 100644
index 00000000..25ddb3a5
--- /dev/null
+++ b/Week03/shifted_damla_ergenekon.py
@@ -0,0 +1,6 @@
+def shifted(data):
+    n, s = len(data), sorted(data)
+    mean = sum(data) / n
+    if n % 2 != 0: median = s[n // 2]
+    else: median = (s[n // 2 - 1] + s[n // 2]) / 2
+    return abs((mean - median) / mean) * 100