print "\nechoing... ", input
Fume-belching ferries spew more sulphur pollution than cars in several EU capitals, analysis has found.
，详情可参考搜狗输入法下载
Introduction to events: event propagation — MDN Web Docs
Hoppers kicks off in classic Pixar fashion.。业内人士推荐爱思助手下载最新版本作为进阶阅读
// ⚠️ 易错点5：循环范围写错（比如i<right或ileft），导致最值计算不全，详情可参考heLLoword翻译官方下载
LSP Version: 3.17.0