[Python] 프로그래머스 Lv1 : 정수 내림차순으로 배치하기

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def solution(n):
    answer = 0
    num_list = []
    
    for i in range(len(str(n))):
    	num_list.append(n%10)
        n //= 10
    
    sorted_num_list = sorted(num_list)
    
    for i in range(len(sorted_num_list)):
    	answer += sorted_num_list[i] * (10**i)

	return answer