vowel_string = 'euioay'


def secret_sort(secret_avatars):
    suit_dict = []
    for avatar in secret_avatars:
        vowel_counter = 0
        for i in range(len(avatar)):
            if i % 2 and avatar[i] in vowel_string:
                vowel_counter += 1
        suit_dict.append((avatar, vowel_counter))

    for index, (k, v) in enumerate(sorted(suit_dict, key=lambda x: x[1])):
        secret_avatars[index] = k