[프로그래머스] 튜플

def solution(s):
    answer=[]
    s=s[2:-2]
    s=s.split('},{')
    s=sorted(s,key=len)
    for i in s:
        k=i.split(',')
        for j in k:
            if int(j) not in answer:
                answer.append(int(j))
    return answer