From 7c0b484c0b1cc02ae33a52d54a7e590a2d2ab03b Mon Sep 17 00:00:00 2001
From: "nuo.o" <49533950+nuoxoxo@users.noreply.github.com>
Date: Mon, 18 Nov 2024 13:32:53 +0100
Subject: [PATCH] Update README.mdx

---
 level09/README.mdx | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/level09/README.mdx b/level09/README.mdx
index 457db0b..0a84577 100644
--- a/level09/README.mdx
+++ b/level09/README.mdx
@@ -16,4 +16,33 @@ Login
 0000010: 4442 8344 757b 7f8c 890a                 DB.Du{....
 ```
 
+Run it
+```b
+> ./level09 token
+tpmhr
+> ./level09 123
+135
+> ./level09 246
+258
+> ./level09 abcd
+aceg
+> ./level09 xyz
+xz|
+> ./level09 az
+a{
+level09@SnowCrash:~$ ./level09 za
+zb
+level09@SnowCrash:~$ ./level09 zab
+zbd
+
+```
+
+Simple algo
 
+- respect python2 syntax
+- to be run in VM
+
+```b
+line = open('/home/user/level09/token').read().strip()
+print 'res/', ''.join(chr(ord(_) - i) for i, _ in enumerate(line))
+```