import random

totalBags = 0
numTrials = 10000

for x in range(numTrials):
    bagCount = 0
    beanCount = 0
    while beanCount < 9:
        for y in range(8):
            n = random.randrange(0, 9)
            if n == 8:
                beanCount += 1
        bagCount += 1
        totalBags += 1

print(totalBags / numTrials)