Find the union of the following sets, namely ${\pi, 3.67, 8, -\frac{21}{4}, -2 \sqrt{2}} \cup {\pi, -\sqrt{2}, 3.67, 6, 4, \frac{31}{4}}$.

import math

fst = set((math.pi, 3.67, 8, -(21/4), -2*math.sqrt(2),))
snd = set((math.pi, -math.sqrt(2), 3.67, 6, 4, (31/4),))
print(fst.union(snd))
