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