Find the difference between two sets, namely ${-1, -\frac{11}{7}, -5.428, 9, -3.13} \setminus {9, \frac{39}{7}, \frac{5}{3}, -3.13, 10, 0.583}$.

fst = set((-1, -(11/7), -5.428, 9, -3.13,))
snd = set((9, (39/7), (5/3), -3.13, 10, 0.583,))
print(fst - snd)
