diff --git a/README.md b/README.md
index 67f5df1a917af9bb617f9439d5db87815fb87db6..57b037fec257f140c5ee68a3d4c969b64d75ed8d 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,11 @@
 
 stdin, stdout
 
+# Change for competition:
+
+solver.c(pp) l12: DEBUG 0
+io.c(pp) l: comment out 109
+
 # Solves:
 
 2, 3, (6), 7, 8