View source for 54 41 53 4b 20 54 49 54 4c 45

===Description===
This numeric system is a more friendly way to represent binary numbers.

50pts

===Question===
Convert the values to a readable format:

<code>476f6f64206a6f62210a54686520666c616720697320637466746563687b38333333
346163382d633065387d0a0a48657861646563696d616c206e756d6572616c732061
726520776964656c79207573656420627920636f6d70757465722073797374656d20
64657369676e65727320616e642070726f6772616d6d657273206265636175736520
746865792070726f7669646520612068756d616e2d667269656e646c792072657072
6573656e746174696f6e206f662062696e6172792d636f6465642076616c7565732</code>

===Solution===
I recognised the text format as hexadecimal from the title, where they are well grouped. I entered the question code into the CyberChef program and encoded the text of the hexadecimal symbols into characters.

Hexadecimal values translated into the following format
<code>
Good job!

The flag is ctftech{83334ac8-c0e8}

Hexadecimal numerals are widely used by computer system designers and programmers because they provide a human-friendly representation of binary-coded values.
</code>

===Tools===
* https://gchq.github.io/CyberChef/ - Super tool to encode and decode strings

===Flag===
<code>ctftech{83334ac8-c0e8}</code>

===Links===
*[[CTF Challenges | Back to CTF Challenges page]]