diff --git a/fizzbuzz.rb b/fizzbuzz.rb
index 4b907f0..aa1f5a8 100644
--- a/fizzbuzz.rb
+++ b/fizzbuzz.rb
@@ -1,7 +1,16 @@
 class Integer
-   def fizzbuzz
-      #
-      # YOUR CODE GOES HERE
-      #
-   end
+def fizzbuzz
+  (1..20).each do |x|
+     m3 = x.modulo(3) == 0
+     m5 = x.modulo(5) == 0
+
+     puts case
+       when (m3 and m5) then 'FizzBuzz'
+       when m3 then 'Fizz'
+       when m5 then 'Buzz'
+       else x
+     end
+    end
 end
+end
+