1def function_that_says_ni(*args, **kwargs):
 2    shrubs = []
 3    valid_names = {"храст", "shrub", "bush"}
 4
 5    for item in args:
 6        if type(item) is dict and "name" in item:
 7            if item["name"].lower() in valid_names:
 8                shrubs.append(item)
 9
10    unique_letters = set()
11    for key, value in kwargs.items():
12        if type(value) is dict and "name" in value:
13            if value["name"].lower() in valid_names:
14                shrubs.append(value)
15                unique_letters.update(key)
16
17    total_sum = 0.0
18    for bush in shrubs:
19        total_sum += bush.get("cost", 0)
20
21    if total_sum > 42.00:
22        return "Ni!"
23
24    sum_in_int = int(total_sum)
25
26    if sum_in_int == 0 or (sum_in_int != 0 and len(unique_letters) % sum_in_int != 0):
27        return "Ni!"
28
29    return f"{total_sum:.2f}лв"