Find the difference between two sets, namely ${7, \frac{37}{7}, 6, -7, -4.85, -2 \sqrt{2}} \setminus {6, -4, \frac{34}{7}, -7}$.

import math

fst = set((7, (37/7), 6, -7, -4.85, -2*math.sqrt(2),))
snd = set((6, -4, (34/7), -7,))
print(fst - snd)
