1def function_that_says_ni(*args, **kwargs):
 2
 3    price = 0.00
 4    unique_letters = set()
 5
 6    for key in args:
 7        if type(key) == dict and'name' in key:
 8            if key['name'].lower() in ["храст", "shrub", "bush"]:
 9                if 'cost' in key: 
10                    price+=key['cost']
11    
12    for key, value in kwargs.items():
13        if type(value) == dict and 'name' in value:
14            if value['name'].lower() in ["храст", "shrub", "bush"]:
15                if 'cost' in value: 
16                    price+=value['cost']
17                
18                for letter in key:
19                    unique_letters.add(letter)
20
21
22    if int(price) > 0 and len(unique_letters) % int(price) == 0 and price<=42.00:
23        return f'{price:.2f}лв'
24
25    return 'Ni!'