diff --git a/a4/10/bb8fd5a3a66c7285b0afc4f46f851cb8a965 b/a4/10/bb8fd5a3a66c7285b0afc4f46f851cb8a965
new file mode 100644
index 00000000000..9959e9962ec
--- /dev/null
+++ b/a4/10/bb8fd5a3a66c7285b0afc4f46f851cb8a965
@@ -0,0 +1 @@
+Author: https://github.com/asynts