Krish, Dhyanam and Hetvi are close friends. Their annual exam
has been just over and planned to go on trip in holiday after the
exam. Krish dreamt to go to Manali, Dhyanam thought about Goa,
its beaches, sun and sea. Hetvi choose the Ellora Caves as a
world heritage site.
But to their great regret, the holidays turned to be very short, so it
will be enough to visit one of the three above named places.
That’s why Krish, as the cleverest, came up with a truly genius
idea: let each of three roll an ordinary six-sided die, and the one
with the highest number of points will be the winner, and will take
the other two to the place of his/her dreams.
Krish thrown a die and got K points, Dhyanam - D points. It was
Hetvi’s turn. But she didn’t hurry. Hetvi wanted to know for sure
what were her chances to visit Ellora Caves.
It is known that Krish and Dhyanam are true gentlemen, that’s
why, if they have the same number of points with Hetvi, they will
let Hetvi win.
Sample Test case:
- Here, K=4 and D=2, SoHetvi will go to Ellora Caves, if she is
lucky to roll 4, 5 or 6 points. Hence, Probability of Hetvi get 4, 5
or 6 points is 3/6 = 1/2.
print([‘1/1’, ‘5/6’, ‘2/3’, ‘1/2’, ‘1/3’, ‘1/6’][max(map(int, input().split()))-1])