From 86bda72f9f7394154a11b918c94561ec82864cdd Mon Sep 17 00:00:00 2001
From: Aleksi Mustonen <mustonen.aleksi@kolumbus.fi>
Date: Wed, 11 Jan 2017 12:58:23 +0200
Subject: [PATCH] ok

---
 koodi.rb | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/koodi.rb b/koodi.rb
index 932f2b3..b148553 100644
--- a/koodi.rb
+++ b/koodi.rb
@@ -1 +1,5 @@
-# kirjoita koodi tänne
+def erotus(a,b)
+   c=a-b
+   puts c
+end
+