diff --git a/12/eca612bc146e50beb8107e893e05b92a5c1234 b/12/eca612bc146e50beb8107e893e05b92a5c1234
new file mode 100644
index 00000000000..f1cae688681
--- /dev/null
+++ b/12/eca612bc146e50beb8107e893e05b92a5c1234
@@ -0,0 +1 @@
+Author: https://github.com/kalenikaliaksandr