letters = []
word = ''


def check():
    for i in range(0, len(word)):
        if word[i] not in letters:
            return False
            break
        return True


check()

89467b62637407362a9e5c102011340e3c53ae2c
<mask token>

<mask token>


def check():
    for i in range(0, len(word)):
        if word[i] not in letters:
            return False
            break
        return True


<mask token>

<mask token>


def check():
    for i in range(0, len(word)):
        if word[i] not in letters:
            return False
            break
        return True


check()

letters = []
word = ''


def check():
    for i in range(0, len(word)):
        if word[i] not in letters:
            return False
            break
        return True


check()
