# Challenge 2: Sum of Digits in a String

Given a string containing numbers, calculate the sum of those numbers.

## We'll cover the following

## Problem Statement

Implement a function that takes a variable `testVariable`

, which contains a **string of digits**, and prints the sum of those digits.

### Input

A variable `testVariable`

containing a string of digits.

### Output

Sum of the digits in the string

### Sample Input

```
"345"
```

### Sample Output

```
12
```

### Try it Yourself

Try this challenge yourself before examining the solution. Good luck!

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