Find the union of the following sets, namely ${6.545, 0, -0.18, 4, -3 \sqrt{3}} \cup {-\frac{3}{\pi }, 0.34, 4, -3 \sqrt{3}, 0}$.

import math

fst = set((6.545, 0, -0.18, 4, -3*math.sqrt(3),))
snd = set((-(3/math.pi), 0.34, 4, -3*math.sqrt(3), 0,))
print(fst.union(snd))
