Tre like siffer

from typing import List

def tokenize(perm : int) -> List[int]:
    s = "{:05d}".format(perm)
    a = s[0:1]
    b = s[1:2]
    c = s[2:3]
    d = s[3:4]
    e = s[4:5]
    return [a,b,c,d,e]

def check_perm(perm : int) -> bool:
    [a, b, c, d, e] = tokenize(perm)
    if a == b and b == c and c != d:
        return True
    if a != b and b == c and c == d and d != e:
        return True
    if b != c and c == d and d == e:
        return True
    return False

combinations = []
for i in range(1, 99999):
    if check_perm(i):
        combinations.append(i)

print(f'Fant {len(combinations)} kombinasjoner')

combinatorial = (10 * 9 * 10) + (10 * 9 * 9) + (10 * 9 * 10)
print(f'Kombinatorisk løsning: {combinatorial}')
print(f'Sannsynlighet: {combinatorial/100000}')

print('Alle kombinasjoner:')
for c in combinations:
    print("{:05d}".format(c))