import math as m
print (-2/3) * (m.log(2,2) - m.log(3,2)) - (1/3) * (m.log(1,2) - m.log(3,2))
print m.log(3,2) - (2/3)
1ba85776d9832c149b999a74725974567e081358
import math as m
print (-2/3) * (m.log(2,2) - m.log(3,2)) - (1/3) * (m.log(1,2) - m.log(3,2))
print m.log(3,2) - (2/3)