diff --git a/21/a1/93ed5a5767ceeb4b32b132c0f392c9c32370 b/21/a1/93ed5a5767ceeb4b32b132c0f392c9c32370
new file mode 100644
index 00000000000..7e75aeeabfb
--- /dev/null
+++ b/21/a1/93ed5a5767ceeb4b32b132c0f392c9c32370
@@ -0,0 +1 @@
+Author: https://github.com/aatosmajava