**[team] n19htch41n**


The file is written with Brainfuck, so I use the
[online interpreter](https://www.splitbrain.org/_static/ook/)
to deobfuscate it.

The output is another esolang named
[Malbolge](https://esolangs.org/wiki/Hello_world_program_in_esoteric_languages#Malbolge)
. [Decode](http://malbolge.doleczek.pl)
it, I get a hex output -> hex2strings

Okay! We found it !!
> ed0c}t53b_5t1_t@_3b@b_3f@c_ht1w_3gAugnAl_c1r3t05e{kr4d

Reverse it,
flag:
>d4rk{e50t3r1c_lAnguAg3_w1th_c@f3_b@b3_@t_1t5_b35t}c0de

Original writeup (https://github.com/in4blu3/CTF/tree/master/HackCon2019/Weird%20Text).