Find the difference between two sets, namely ${4, -9, \frac{32}{7}, \pi, \frac{6}{\pi }} \setminus {8, -9, -6, 4}$.

import math

fst = set((4, -9, (32/7), math.pi, (6/math.pi),))
snd = set((8, -9, -6, 4,))
print(fst - snd)
