---
id: 5d792536c8d2f0fdfad768fe
title: Part 065
challengeType: 0
isBeta: true
---
## Description
You can add more arguments by simply adding another arrow with another argument name:
```js
const manyArguments = a => b => c => d => [a, b, c, d]
```
Add another argument to `addChars` and add it to the sum: `c1 => c2 => n => c1 + c2 + n`.
## Instructions
## Tests
```yml
tests:
- text: See description above for instructions.
testString: assert(code.replace(/\s/g, "").includes("constaddChars=c1=>c2=>n=>c1+c2+n"));
```
## Challenge Seed
```html
```
### Before Test
### After Test
```html
```
## Solution