diff --git a/index.js b/index.js
index 9bb9cd7..351cdba 100644
--- a/index.js
+++ b/index.js
@@ -1,4 +1,7 @@
 var doubler = function(a, b) {
+  var first = a * 1;
+  var second = b * 1;
+  return b * 2 + a * 2;
 }
 
 console.assert(doubler(4,2) === 12);