Find the union of the following sets, namely ${-3 \pi, 2 \pi, -\frac{13}{7}, 2.418} \cup {2 \pi, -\frac{13}{7}, -\pi, 2.418}$.

import math

fst = set((-3*math.pi, 2*math.pi, -(13/7), 2.418,))
snd = set((2*math.pi, -(13/7), -math.pi, 2.418,))
print(fst.union(snd))
