https://www.youtube.com/watch?v=5YIc9Bfx0k4&list=PLarlUjHdz_AXcJMmOVUbK5ju2AvSNwEZ1&index=27
https://www.youtube.com/watch?v=Rptzdlum0Nc&list=PLarlUjHdz_AXcJMmOVUbK5ju2AvSNwEZ1&index=24
https://www.youtube.com/watch?v=t6fhmJiow8U&list=PLarlUjHdz_AXcJMmOVUbK5ju2AvSNwEZ1&index=5
이제 10만 이상은 구독안함ㅅㄱ