Find the difference between two sets, namely ${\frac{18}{7}, 2, \frac{11}{\pi }, -7, \pi} \setminus {2 \pi, \pi, -2 \sqrt{5}, \frac{18}{7}, -\pi, -8, 2, \frac{11}{\pi }}$.

import math

fst = set(((18/7), 2, (11/math.pi), -7, math.pi,))
snd = set((2*math.pi, math.pi, -2*math.sqrt(5), (18/7), -math.pi, -8, 2, (11/math.pi),))
print(fst - snd)
