diff --git a/hw1/fibonacci.rb b/hw1/fibonacci.rb
index e69de29..d60fdd0 100644
--- a/hw1/fibonacci.rb
+++ b/hw1/fibonacci.rb
@@ -0,0 +1,18 @@
+class Fibonacci
+  include Enumerable
+
+  def initialize(length)
+    @length = length
+  end
+
+  def each
+    prev_value = 1
+    value = 1
+    @length.times do
+
+      yield prev_value
+
+      prev_value, value = value, prev_value + value
+    end
+  end
+end