diff --git a/index.js b/index.js
index ff28a6f9..e5740058 100644
--- a/index.js
+++ b/index.js
@@ -1,22 +1,16 @@
-class NumberArray {
-  constructor(numbers) {
-    this.numbers = numbers;
-  }
-
-  getPositiveSum() {
-    let sum = 0;
-    for (let number of this.numbers) {
-      if (number > 0) {
+function getPositiveSum ( numbers) {
+  let sum = 0;
+    for ( let number of numbers) {
+      if ( number > 0 ) {
         sum += number;
       }
     }
     return sum;
   }
-}
 
-const numbers = [2, -4, 6, -8, 10, -12];
-const numberArray = new NumberArray(numbers);
-const positiveSum = numberArray.getPositiveSum();
 
+const numbers = [2, -4, 6, -8, 10, -12];
+const positiveSum =getPositiveSum( numbers);
+console.log(positiveSum);
 // Input: [2, -4, 6, -8, 10, -12]
 // Output: 18