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 reverse_row(mat): 
    # write each row in reversed order 
    result = []
  
    # traverse over the rows 
    for i in range(len(mat)): 
        res = [] 
        # add each element in the row 
        for j in range(len(mat[i]) - 1, -1, -1): 
            res.append(mat[i][j]) 
        result.append(res) 
  
    return result 
  
# Driver code 
mat = [[1, 2, 3], [4, 5, 6]] 
print(reverse_row(mat))
user
[[3, 2, 1], [6, 5, 4]]
assistant