+     ° ▓▓▓     *      
     ~ + °   d8888b▓▓▓▓▓       °
     +   /░░░░░░░     \   *
       +/░░°░░░░       \~~~.  °
      /░░░d88b░░sooyeon.ch\
      ══╦═══╦════════════  ╗°
     *╠═╩═~~~~╦═╣°(window) 
     ~~~╦═╩╦════╣          ~~~
      ╠═╩═╦╩═°╦═╣    (door)║.  °
     ^^^.═.^^..═.═.^^^^.═.═.^^.═.