diff --git a/read.js b/read.js
new file mode 100755
index 0000000..8e9c221
--- /dev/null
+++ b/read.js
@@ -0,0 +1,5 @@
+#!/usr/bin/env js
+s = readline();
+for (var i=0; i<s.length; i++) {
+  print(s.substr(0, i+1));
+}