def sticky_keys(word, num_sticky=1):
    last = last_char(word)
    sticky = np.arange((last + 1))
    np.random.shuffle(sticky)
    for i in range(num_sticky):
        word = ((word[:sticky[i]] + word[sticky[i]]) + word[sticky[i]:])
    return word
def sticky_keys(word, num_sticky=1):
    last = last_char(word)
    sticky = np.arange((last + 1))
    np.random.shuffle(sticky)
    for i in range(num_sticky):
        word = ((word[:sticky[i]] + word[sticky[i]]) + word[sticky[i]:])
    return word