# [Brachylog](https://github.com/JCumin/Brachylog), <s>27</s> 21 bytes, [Fatalize](http://codegolf.stackexchange.com/a/89017/48934)

    yrb:1a:+a:[1]c*.
    :2/.

[Try it online!](http://brachylog.tryitonline.net/#code=eXJiOjFhOithOlsxXWMqLgo6Mi8u&input=MTA&args=Wg)