# Absolute Sorting

Elementary
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Let's try some sorting. Here is sequence with the specific rules.

The sequence has various numbers. You should sort it, but sort it by absolute value in ascending order. For example, the sequence (-20, -5, 10, 15) will be sorted like so: (-5, 10, 15, -20). Your function should return the sorted list or tuple.

Input: List of integers (int).

Output: Sorted list of integers (int).

Addition: The results of your function will be shown as list in the tests explanation panel.

Examples:

```assert checkio([-20, -5, 10, 15]) == [-5, 10, 15, -20]
assert checkio([1, 2, 3, 0]) == [0, 1, 2, 3]
assert checkio([-1, -2, -3, 0]) == [0, -1, -2, -3]
```

How it is used: Sorting is a part of many tasks, so it will be useful to know how to use it.

Preconditions: len(set(abs(x) for x in array)) == len(array)
0 < len(array) < 100
all(isinstance(x, int) for x in array)
all(-100 < x < 100 for x in array)

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CheckiO Extensions allow you to use local files to solve missions. More info in a blog post.

In order to install CheckiO client you'll need installed Python (version at least 3.8)

Install CheckiO Client first:

`pip3 install checkio_client`

`checkio --domain=py config --key=`

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`checkio serv -d`

Alternatevly, you can install Chrome extension or FF addon

`checkio install-plugin`
`checkio install-plugin --ff`
`checkio install-plugin --chromium`

Read more here about other functionality that the checkio client provides. Feel free to submit an issue in case of any difficulties.

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