a = {0: "И", 1: "О", 2: "У"}

k = 0

for i in range(0, len(a)):

for j in range(0, len(a)):

for g in range(0, len(a)):

for m in range(0, len(a)):

for n in range(0, len(a)):

k += 1

if k == 240:

print(a[i], a[j], a[g], a[m], a[n], end=" ")

from itertools import product

letters = 'ИОУ'

words = [''.join(word) for word in product(letters, repeat=5)]

words.sort()

result = words[239]

print(result)