diff --git a/002/fibonacci.js b/002/fibonacci.js
index d90d2d4..c90ba92 100644
--- a/002/fibonacci.js
+++ b/002/fibonacci.js
@@ -1,7 +1,8 @@
-let s = 0
-let f = [1, 1]
-while (f[0] < 4e6) {
-  if (f[0] % 2 === 0) s+= f[0]
-  f = [f[1], f[0] + f[1]]
+var last = 0;
+var first = 1;
+while (first < 4e6){
+	var aux = first;
+    first  = first+last;
+    last = aux;
 }
-console.log(s)
+console.log(last);