diff --git a/18/17.txt b/18/17.txt
index ef6bce1..641b192 100644
--- a/18/17.txt
+++ b/18/17.txt
@@ -1 +1 @@
-M
\ No newline at end of file
+\v 17 \v 18 \v 19 \v 20 M
\ No newline at end of file