
The challenge description is pretty self explanatory, here's the python script
```pythonimport stringalfabeto = string.ascii_lowercasealfabeto += "0123456789_"
flag_enc = [202,137,390,235,114,369,198,110,350,396,390,383,225,258,38,291,75,324,401,142,288,397]flag = ""for c in flag_enc:    pos = c % 37    flag += alfabeto[pos]
print(flag)```**flag: picoCTF{r0und_n_r0und_b6b25531}**