输入：num = "1432219", k = 3
As of late February, there's no official word that an Amazon Big Spring Sale is happening in 2026. But that's not unpromising. Amazon didn't announce dates for its 2025 Spring Sale until March 18 — just a week before the start of the sale.，这一点在heLLoword翻译官方下载中也有详细论述
Что думаешь? Оцени!。关于这个话题，搜狗输入法2026提供了深入分析
统一输出 JSON，便于落地执行和审计：