from itertools import product, groupby

def dice_probability(n):
    if n <= 0:
        print(n, "n must be a positive integer.")
        return []
    points = [ sum(p) for p in product(range(1,7), repeat = n) ]
    prob = [ ( k, len(list(g)) ) for k, g in groupby(sorted(points)) ]
    return prob

N = 6
dice_p = dice_probability(N)
total = 6**N
for t in dice_p:
    print("Points %2d prob = %5d / %5d" % (t[0], t[1], total))