Find the difference between two sets, namely ${9, -2, \frac{18}{e}, 1, -\sqrt{3}, -5, -\frac{7}{\sqrt{5}}, 0.39, 0} \setminus {\frac{49}{5}, 4 \sqrt{3}, 0, 9, -5, -3, 6, 0.39, -4 \sqrt{3}}$.

import math

fst = set((9, -2, (18/math.e), 1, -math.sqrt(3), -5, -(7/(math.sqrt(5))), 0.39, 0,))
snd = set(((49/5), 4*math.sqrt(3), 0, 9, -5, -3, 6, 0.39, -4*math.sqrt(3),))
print(fst - snd)
