diff --git a/a4/67f78aa72ee49018ef4bc1b1deef6f9607ee2e b/a4/67f78aa72ee49018ef4bc1b1deef6f9607ee2e
new file mode 100644
index 00000000000..fa943c5408d
--- /dev/null
+++ b/a4/67f78aa72ee49018ef4bc1b1deef6f9607ee2e
@@ -0,0 +1 @@
+Author: https://github.com/BenWiederhake