The Solution is shared considering https://cryptohack.org/faq/#solutions

Problem

Each challenge is designed to help introduce you to a new piece of cryptography. Solving a challenge will require you to find a “flag”.

These flags will usually be in the format crypto{y0ur_f1rst_fl4g}. The flag format helps you verify that you found the correct solution.

Try submitting this into the form below to solve your first challenge.

Solution

Solution is given in problem XD

FLAG := crypto{y0ur_f1rst_fl4g}