In addition to this, in order to post a flyer in an apartment complex, you have to get permission from the management workplace and spend a charge. https://cosposrts.com/%EC%8B%A0%EC%9E%85%EC%9C%A0%ED%9D%A5%EC%95%8C%EB%B0%94-%EA%B5%AC%EC%9D%B8%EA%B5%AC%EC%A7%81%EC%9D%98-%EB%AA%A8%EB%93%A0-%EA%B2%83-%EA%B8%B0%ED%9A%8C%EB%A5%BC-%EC%B0%BE%EC%95%84%EC%84%9C/