输入：num = "1432219", k = 3
成功返回版本号即表示核心组件安装成功。
，这一点在旺商聊官方下载中也有详细论述
The capacity of each node (how many points it can hold before splitting) controls the shape of the tree. A low capacity means nodes split early, producing a deep tree with many small cells. A high capacity means nodes tolerate more points before splitting, producing a shallow tree with larger cells.，更多细节参见WPS下载最新地址
思想的伟力，跨越山海，指引前行道路。，详情可参考im钱包官方下载
I tested following models: