// 测试用例验证（和你的逻辑完全匹配）
Steven Frank, the co-founder of Panic, wrote this in 1999, with similar themes:
，这一点在im钱包官方下载中也有详细论述
5年的“巩固”“拓展”“衔接”，在守牢防止规模性返贫致贫底线的同时，如何下好乡村全面振兴这盘大棋？。关于这个话题，51吃瓜提供了深入分析
If an area does not have any color coding, it means there are no conditions on the portions of dominoes within those spaces.