diff --git a/day27/day27.txt b/day27/day27.txt
new file mode 100644
index 00000000..7c8c568e
--- /dev/null
+++ b/day27/day27.txt
@@ -0,0 +1 @@
+day27 demo
diff --git a/day27/readme.txt b/day27/readme.txt
new file mode 100644
index 00000000..34f6e1c9
--- /dev/null
+++ b/day27/readme.txt
@@ -0,0 +1 @@
+read me !