The puzzle:
a = ???
b = ???
c = ???
d = ???
e = ???
f = ???
g = f * a ** a * (e * 2 - 28 // c) + 622 + b
h = g * a - (d * (31 - c) + 60 // b)
s = a * b * c * d * e * f * g
sh = ''.join([str(s), str(h)])
for index, char in enumerate(sh):
if index % 2 != 0:
num = ''.join([str(sh[index-1]), str(sh[index])])
print(chr(int(num)), end='')
Partial output of the script (* means hidden character):
***F*****N
Main task: find the meaning of what the python script prints with the right key used.
Optional task: solve the key.