The Severn Estuary is home to huge numbers of sprats and salmon, and the twaite shad, a protected migrating species which spawns in the tributaries of the River Severn.
* 核心思路：单调递增栈 + 控制删除位数（k0），优先移除高位大数，保证剩余数字最小
，详情可参考Line官方版本下载
扎根黄土地的岁月，让青年习近平“懂得了什么叫实际，什么叫实事求是，什么叫群众”。因而，“今后如果有条件、有机会，我一定要从政，做一些为老百姓办好事的工作”。
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