---
id: 5900f4ae1000cf542c50ffc0
challengeType: 5
title: 'Problem 321: Swapping Counters'
videoUrl: ''
localeTitle: ''
---

## Description
undefined

## Instructions
undefined

## Tests
<section id='tests'>

```yml
tests:
  - text: ''
    testString: 'assert.strictEqual(euler321(), 2470433131948040, "<code>euler321()</code> should return 2470433131948040.");'

```

</section>

## Challenge Seed
<section id='challengeSeed'>

<div id='js-seed'>

```js
function euler321() {
  // Good luck!
  return true;
}

euler321();

```

</div>



</section>

## Solution
<section id='solution'>

```js
// solution required
```
</section>