diff --git a/f2/b7224d93da1fd70729da18a96fa37e5dfa6bd5 b/f2/b7224d93da1fd70729da18a96fa37e5dfa6bd5
new file mode 100644
index 00000000000..d2d314a9f48
--- /dev/null
+++ b/f2/b7224d93da1fd70729da18a96fa37e5dfa6bd5
@@ -0,0 +1 @@
+Author: https://github.com/cubiclove