Rating:

Beware the Idles of March

Crypto Points - 50

JFJAM{j@3$@y_j!wo3y}
- Haskell#1426

This pretty much looks like some Caesar Cipher. So using this CyberChef combination revealed the flag.

Note: Use ROT13, because we do not want the curly brackets to be shifted.

CYCTF{c@3$@r_c!ph3r}

Original writeup (https://github.com/B34nB01z/writeups/tree/master/2020/CYCTF/Beware%20the%20Idles%20of%20March).