Code Signal: Intro=43/60

def isBeautifulString(inputString):
    from string import ascii_lowercase 
    alpha_list = list(ascii_lowercase) # 비교할 알파벳 소문자 리스트
    IS = list(set(inputString))
    IS.sort()
    print(IS)
    IL = []
    for i in range(len(IS)):
        total = 0
        for j in range(len(inputString)):
            if IS[i] != alpha_list[i]:
                return False
            elif IS[i] == inputString[j]:
                total += 1
        IL.append(total)
    print(IL)
    for k in range(len(IL)-1):
        if IL[k] < IL[k+1]:
            return False
    return True