diff --git a/12/c6/ac78e20904431372dec1e81f896807c9f35a b/12/c6/ac78e20904431372dec1e81f896807c9f35a
new file mode 100644
index 00000000000..f1cae688681
--- /dev/null
+++ b/12/c6/ac78e20904431372dec1e81f896807c9f35a
@@ -0,0 +1 @@
+Author: https://github.com/kalenikaliaksandr