Find the union of the following sets, namely ${-4, -\sqrt{2}, 2, -3, -\frac{7}{e}} \cup {-5, 2, -3, -\frac{7}{e}, -\sqrt{2}}$.

import math

fst = set((-4, -math.sqrt(2), 2, -3, -(7/math.e),))
snd = set((-5, 2, -3, -(7/math.e), -math.sqrt(2),))
print(fst.union(snd))
