描述：给定字符串 num（非负整数）和整数 k，移除 k 位数字，使剩余数字最小。以字符串形式返回（不含前导零）。
"itemId": "66c66152-0ac8-41cd-a450-2ee827767e8a",，详情可参考夫子
Pharo already provides dedicated tools for the rewrite engine, such as StRewriterMatchToolPresenter:，推荐阅读WPS下载最新地址获取更多信息
On the other hand, Grammarly offers a Premium subscription for $30/month for a monthly plan $20/month for quarterly, and $12/month for an annual subscription.