1def function_that_says_ni(*args,**kwargs):
 2
 3    bushes = []
 4    bushes_names = []
 5    for arg in args:
 6        if type(arg) is dict:
 7            if "name" not in arg:
 8                continue
 9            if type(arg["name"]) is not str:
10                continue
11            bush_name = arg["name"].lower()
12            if bush_name not in ["shrub", "храст", "bush"]:
13                continue
14            bushes.append(arg)
15
16    for key,value in kwargs.items():
17        if type(value) is dict:
18            if "name" not in value:
19                continue
20            if type(value["name"]) is not str:
21                continue
22            bush_name = value["name"].lower()
23            if bush_name not in ["shrub", "храст", "bush"]:
24                continue
25            bushes.append(value)
26            bushes_names.append(key)
27
28    letters = [letter for name in bushes_names for letter in name]
29    letters = set(letters)
30    letters_count = len(letters)
31
32    bushes_cost = 0
33    for bush in bushes:
34        if "cost" in bush:
35            if (type(bush["cost"]) is int) or (type(bush["cost"]) is float):
36                bushes_cost += bush["cost"]
37
38    bushes_cost = round(bushes_cost, 2)
39
40    if int(bushes_cost) == 0:
41        return "Ni!"
42    if letters_count % int(bushes_cost) != 0:
43        return "Ni!"
44    if bushes_cost > 42:
45        return "Ni!"
46
47    return f"{bushes_cost:.2f}лв"