You are going to act as a Python interpreter. You will be given a valid python program below. Write down what you think the result of its execution would be. Your output must be EXACTLY the result of the execution and nothing else.
situation
system
def combine_dicts(d1, d2): 
    new_dict = {} 
    for item in d1: 
        if item in d2: 
            new_dict[item] = d1[item] + d2[item] 
        else: 
            new_dict[item] = d1[item] 
  
    for item in d2: 
        if item in d1: 
            new_dict[item] = d1[item] + d2[item] 
        else: 
            new_dict[item] = d2[item] 
    return new_dict 

d1 = {'a' : 100, 'b' : 200, 'c' : 300} 
d2 = {'a' : 300, 'b' : 200, 'd' : 400}
print(combine_dicts(d1, d2)) # {'a': 400, 'b': 400, 'c': 300, 'd': 400}
user
{'a': 400, 'b': 400, 'c': 300, 'd': 400}
assistant