在每行中插入空行

def calculate_sum(a, b):
    # 计算两个数的和
    sum = a + b

    return sum


def calculate_product(a, b):
    # 计算两个数的乘积
    product = a * b

    return product


# 主程序入口
if __name__ == "__main__":
    num1 = 10
    num2 = 5

    # 计算和
    sum_result = calculate_sum(num1, num2)
    print("Sum:", sum_result)

    # 计算乘积
    product_result = calculate_product(num1, num2)
    print("Product:", product_result)