def add(a=1, b): return a + b

def print_user(name, age=18, gender): print(f"姓名：{name}，年龄：{age}，性别：{gender}")

def calculate(nums, operation='add', result): return sum(nums) if operation == 'add' else eval(''.join(map(str, nums)))

def func(a, **kwargs, b): return a + b + sum(kwargs.values())