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## expandstr
### Instructions
Write a program that takes a `string` and displays it with exactly three spaces between each word, with no spaces or tabs at either the beginning nor the end.
5 years ago
The `string` will be followed by a newline (`'\n'`).
A word is a sequence of alphanumerical characters.
If the number of arguments is not 1, or if there are no word, the program displays nothing.
### Usage
```console
$ go run . "you see it's easy to display the same thing" | cat -e
you see it's easy to display the same thing$
$ go run . " only it's harder " | cat -e
only it's harder$
$ go run . " how funny it is" "did you hear, Mathilde ?" | cat -e
$ go run .
$
```