https://school.programmers.co.kr/learn/courses/30/lessons/12932
python
def solution(n: int) -> list:
n = list(str(n))
return list(map(int, n[::-1]))
if __name__ == "__main__":
result = solution(12345)
print(result)
print(result == [5,4,3,2,1])
[5, 4, 3, 2, 1]
True