## Task
In this kata you'll be given a string of English digits "collapsed" together, like this:

`zeronineoneoneeighttwoseventhreesixfourtwofive`

Your task is to split the string back to digits:

`zero nine one one eight two seven three six four two five`

## Examples
```
three -> three
eightsix -> eight six
fivefourseven -> five four seven
ninethreesixthree -> nine three six three
fivethreefivesixthreenineonesevenoneeight -> five three five six three nine one seven one eight
```

Source: codewars | Difficulty: EASY
Tags: Fundamentals

Starter code: def uncollapse(digits):
	

Solutions:
import re

def uncollapse(digits):
	return ' '.join(re.findall('zero|one|two|three|four|five|six|seven|eight|nine', digits))


import re

def uncollapse(digits):
	return ' '.join((m.group() for m in re.finditer('zero|one|two|three|four|five|six|seven|eight|nine', digits)))


uncollapse = lambda s: __import__('re').sub('(zero|one|two|three|four|five|six|seven|eight|nine)', ' \\1', s)[1:]


import re

def uncollapse(digits):
	return re.sub('(zero|one|two|three|four|five|six|seven|eight|nine)', '\\1 ', digits).strip()


digits = 'zero one two three four five six seven eight nine'.split()

def uncollapse(stg):
	for d in digits:
		stg = stg.replace(d, f'{d} ')
	return stg.strip()