输入：num = "1432219", k = 3
During his time at Uber, Michael became a member of Pentagon’s Defense Business Board, an advisory group that shares best practices from the private sector with government agencies. At the time of his appointment, he was the only board member with tech startup experience.
，更多细节参见搜狗输入法2026
In Python, you actually can’t do that because *args is always a tuple:
but as a matter of convenience, you can "set" a PIN of your choice by using an