Find the difference between two sets, namely ${6, -\frac{17}{\sqrt{\pi }}, -4, \frac{23}{4}, 1, 9} \setminus {\frac{36}{7}, \frac{23}{4}, -\frac{17}{\sqrt{\pi }}, 6, -5, -4}$.

import math

fst = set((6, -(17/(math.sqrt(math.pi))), -4, (23/4), 1, 9,))
snd = set(((36/7), (23/4), -(17/(math.sqrt(math.pi))), 6, -5, -4,))
print(fst - snd)
