diff --git a/generator.js b/generator.js
index cbb6761..8867cbc 100644
--- a/generator.js
+++ b/generator.js
@@ -1,3 +1,15 @@
 module.exports = function(n) {
   // do work here
+  let arr = [];
+  for (let i = 1; i < n; i++) {
+    arr.push(i);
+  }
+
+  function shuffle(array) {
+    array.sort(() => Math.random() - 0.5);
+  }
+
+  shuffle(arr);
+  arr.unshift(0);
+  return arr;
 };