The below text is given for deciphering:
cvpbPGS{arkg_gvzr_V'yy_gel_2_ebhaqf_bs_ebg13_MAZyqFQj}
The problem statement says that it uses ROT13 cipher. So I wrote a python script to decipher it. Run get_flag.py to get the flag.
python3 get_flag.py
picoCTF{next_time_I'll_try_2_rounds_of_rot13_ZNMldSDw}