from random import randint
from tqdm import tqdm

successes = 0
games = 10 ** 7
for game in tqdm(range(games)):
    counts = [0, 0, 0, 0, 0]  # in order: red, blue, green, yellow, crow

    while any([i < 4 for i in counts[:-1]]) and counts[-1] != 5:
        n = randint(1, 6)
        if n == 6:
            min_idx = min(range(len(counts[:-1])), key=counts[:-1].__getitem__)
            counts[min_idx] += 1
        else:
            counts[n-1] += 1

    if counts[4] < 5:
        successes += 1


print(successes * 100 / games)