diff --git a/1.15/extend_each.py b/1.15/extend_each.py
new file mode 100644
index 0000000..967094a
--- /dev/null
+++ b/1.15/extend_each.py
@@ -0,0 +1,22 @@
+"""
+extend_each
+"""
+
+
+#  Copyright (c) 2021. Pascal Syma. All rights reserved.
+
+def extend_each(my_item, my_list):
+    """
+    Add _my_item_ to each row of _my_list_. Changing the original.
+    :param my_item: Item to add
+    :param my_list: Nested list
+    """
+    for row in my_list:
+        row.append(my_item)
+
+
+if __name__ == '__main__':
+    old_list = [['kangar'], ['z'], ['f']]
+    print(f'{old_list = }')
+    print(f'{extend_each("oo", old_list) = }')
+    print(f'{old_list = }')