By default we’ll log as much information as possible in the prototype. We can later put this behind debugging flags. Every time a command is run we should see: the call path, and the final payload sent to GHCi.
“十四五”时期，莆田市城厢区加快城市更新步伐，推动棚改、旧改项目落地，建成区面积从23.8平方公里扩大至30平方公里。城厢区住房和城乡建设局党组成员陈麟介绍，该区已建成26个安置小区，完成2.2万套安置房回迁。
What the Warner Bros deal could mean for streaming, cinemas and news。业内人士推荐体育直播作为进阶阅读
A simple guide to the crisis in South Sudan
，详情可参考谷歌浏览器下载
FT Edit: Access on iOS and web。业内人士推荐下载安装汽水音乐作为进阶阅读
思路：找「右侧第一个 ≤ cur」的元素 → 弹出所有 cur 的元素，栈顶即为折扣。最终价格 = cur - 折扣（有则）或 cur（无则）。