[Programmers] - 문자열 다루기 기본 (Level 1)

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연습문제
LEVEL : 1
문제링크

s = 'a1234'

def solution(s):
    import re
    p = re.compile('[0-9]')
    pp = p.findall(s)
    return (len(pp)== 4 or len(pp)== 6) and (''.join(pp) == s)

solution(s)

False