# `005` previous and next

## 📝 Instructions:

1. Complete a function `previous_next()` that reads an integer number and returns its previous and next numbers. 

## 📎 Example input:

```py
previous_next(179)
```

## 📎 Example output:

```py
(178, 180)
```

## 💡 Hints:

+ You can return multiple parameters: `return a, b`

+ If you don't know how to start solving this assignment, please, review a theory for this lesson: https://snakify.org/lessons/print_input_numbers/

+ You may also try step-by-step theory chunks: https://snakify.org/lessons/print_input_numbers/steps/1/
