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 find_max_sum(matrix):
    row = len(matrix)
    col = len(matrix[0])
    max_sum = 0
    max_row = 0
    max_col = 0

    for i in range(row):
        for j in range(col):
            # Iterating over top, bottom, left, right columns
            top_val = 0
            left_val = 0
            if i > 0:
                top_val = matrix[i - 1][j]
            if j > 0:
                left_val = matrix[i][j - 1]
            cur_sum = matrix[i][j] + top_val + left_val
            if cur_sum > max_sum:
                max_sum = cur_sum
                max_row = i
                max_col = j

    return max_sum

result = find_max_sum(
    [[1, 2, 3], 
    [4, 5, 6], 
    [7, 8, 9]]
)
print(result)
user
23
assistant