let a = 3;

let b = 17;

let c = 12;

// Only change code below this line

a = a + 12;

b = 9 + b;

c = c + 7;

var a = 3;

a += 12;

var b = 17;

b += 9;

var c = 12;

c += 3;

```
phucdfx12093@funix.edu.vn
User Agent is: <code>Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69 Safari/537.36</code>
**Challenge:** Compound Assignment With Augmented Addition
https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/basic-javascript/compound-assignment-with-augmented-addition
https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/basic-javascript/compound-assignment-with-augmented-addition
```