diff --git a/python-temel/demet.eleman.fonksiyon.py b/python-temel/demet.eleman.fonksiyon.py
new file mode 100644
index 0000000..9f7e27d
--- /dev/null
+++ b/python-temel/demet.eleman.fonksiyon.py
@@ -0,0 +1,12 @@
+def add(*a):
+    total = 0
+    for x in a:
+        if isinstance(x, (list, tuple)):
+            total += sum(x)
+        else:
+            total += x
+    return total
+
+x = [20, 30]
+result = add(10, x, 40)
+print(result)