Update COSE474-03.md

.gitignore

@@ -2,3 +2,4 @@
 __pycache__
 .DS_Store
 Ch14_Computer_Vision/ssd_outputs/
+Ch00_Playground/

AAA721.md

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+2021 Fall
+=========
+
+| No            | Name           | Department/Major | Message           |
+| ------------- |:--------------:| ----------------:|------------------:|
+| 1             | Hyunwoo J. Kim | CS               | Hello World!      |
+
+
+2020 Fall
+=========
+
+| No            | Name           | Department/Major | Message           |
+| ------------- |:--------------:| ----------------:|------------------:|
+| 1             | Hyunwoo J. Kim | CS               | Hello World!      |
+| 2             | Minkyu  Jeon   |  CS              | I'm the TA for AAA721    |
+| 3             | Jeonggyu Song  | CS               | SATOR             |
+| 4             | Junyeon Lee    | CS               | Nice to meet you  |
+| 5             | DOhyeon Ryu    | CS               | :)                |
+| 6             | Sungyeong Jang | CS               | Nice to meet you! |
+| 7             | Changhyeon An  | Convergence Security | I work for Samsung SDS |
+| 8             | SeungJun Lee   | CS               | XD                |
+| 9             | Heemin Lee     | CS               | Hello everyone    |
+| 10		        | Hyeonjin Park  | CS		            | Hello	           	|
+| 11            | Jungho Lee     | IME              | Hello             |
+| 12				    | Jihyun Kim	   | CS				        | Security + AI		  |
+| 13            | Jiwon Kim      | CS               | Hello~            |
+| 14            | Sangwoo Park   | CS               | Allergy!          |
+| 15            | Jinyoung Park  | CS               | Hello             |
+| 16            | Yujin Kim      | CS               | Nice to meet you! |
+| 17            | Chongkeun Paik  | CRE             | Hello             |
+| 18            | Seokhyun Lee   | CS               | :octocat::speech_balloon: Nice to meet you |
+| 19            | Heejeong Choi  | IME              | Hello             |
+| 20            | Hodong Kim     | CS               | isslab.kroea.ac.kr|
+| 21            | Seongjun Yun   | CS               | Nice to meet you~ |
+| 22            | Seunghun Lee   | CS               | ^^b Have a good day |
+| 23            | JongHyun Choi  | IME              | Hello             |
+| 24            | Dohyun Kim     | CS               | Hello!~           | 
+| 25            | Jeong-gi Kwak  | EE               | Hello             |
+| 26            | Bokyeung Lee   | EE               | HI                |
+| 27            | Kyungdeuk Ko   | EE               | Nice to meet you  |
+| 28            | Hanna Lee      | CS               | Hello             |
+| 29            | Sungdong Yoo   | CS               | Hello~!           |
+| 30            | Guhnoo Yun     | CS               | :sunny: Buongiorno!       |
+| 31            | Haeun Park     | IME              | Nice to meet you :)|
+| 32            | ChangSeok Koh  | CS               | Hello I've lately joined to this class! |
+| 33            | YoungSeon Noh  | IME              | Hello~            |
+
+

COSE474-03.md

@@ -0,0 +1,67 @@
+2022 Fall
+==
+| No   |      Name      | Department/Major |      Message |
+| ---- | :------------: | ---------------: | -----------: |
+| 1    | Hyunwoo J. Kim |               CS | Hello World! |
+
+2021 Fall
+==
+| No   |      Name      | Department/Major |      Message |
+| ---- | :------------: | ---------------: | -----------: |
+| 1    | Hyunwoo J. Kim |               CS | Hello World! |
+| 2   | DongHu Kim     | CS               | Goodbye, Cruel World! |
+| 3   |   Wooseok Kim  |              ACE | Hello World! |
+| 4   | Seungyun Baek  | Cyber Defense    | Hello          |
+| 5   | SeungHeon Kim  | CS               | Hello World!  |
+| 6   | Camden Scott   | CS               | Hi!          |
+| 7   | Hyunsoo Lim    | CS               | Hello World! |
+| 8    | Jorge F. Gimenez Perez |       CS | Hello KU!    |
+| 9    | Hyelim Kim |               STAT | Hello World! |
+| 10   | YooHwan Yeon | EEE | Amor Fati! |
+| 11   | Dong Hwan Kim  | Computer Info/ AI| It's an honor to be with you |
+| 12    | Hanjin Choi    |               EE | Hello World! | 
+| 13    | Sang Joon Lee | CS             | Hello World! |
+| 14   | Mingeun Jo     |   CS              | Hello World! |
+| 15   |     Minjune Choi      | physics | Hello World! |
+| 16    | Pilsang Kim    |               STAT | Hello World! |
+| 17    | Inyup Lee    |               CS | Hi, everyone | 
+| 18    | Jaehu Lee    | CS               | Hello World! | 
+| 19    | Simo Ryu    | Cyber Defense / Business Administration | I love DL |
+| 20    | Jiseok Ryu   | Psychology      | Hello World! |
+
+
+2020 Fall
+==
+| No   |      Name      | Department/Major |      Message |
+| ---- | :------------: | ---------------: | -----------: |
+| 1    | Hyunwoo J. Kim |               CS | Hello World! |
+| 2    |   Dohwan Ko    |               CS | Hello World! |
+| 3    | Choi min hyuk  | CS               | Hello World! |
+| 4    | Seung Joon Park| CS               | Jal Butakhapnida! |
+| 5    |    Juno Kim    | Computer Software| Hello World!      |
+| 6    | Chan Gu Kang   | CS               | Hello World!      |
+| 7    |   Gichan Kim   |               CS | Can I Alive? |
+| 8    | Seonghoon Park | medical engineering| Hello World!      |
+| 9    | Youngwun Kim   | CS               | Hello!!!     |
+| 10   | JunTae Kim     | earth and environmental science / AI| IWBB(I will be back) |
+| 11   | SeungHee Han   |    Physics       | HonjongModel |
+| 12   | Jihwan Park    | CS               | Hello HOI    |
+| 13   | Sujong Chae    | CS               | Hello!!      |
+| 14   | Hyunmo Kang    | CSE / CS         | I want to graduate |
+| 15   | JiSeok Ryu     | CS               | Hello World! |
+| 16   | Seung Hyun Kong| CSE / CS         | Hello        |
+| 17   | Jaemin Son     | CS               | Stand there AlphaGo |
+| 18   | Wookyoung Kim  | CS               | Hello, World! |
+| 19   | Jin Hongyu     | CS               | Hello!        |
+| 20   | Lee Jaewon     | Mathematics      | hello |
+| 21   | Min Ji Su      | CS               | HELLO         |
+| 22   | JongGwan Jung  | CS               | Wello Horld!  |
+| 23   | SeokHyeon Chin | CS               | Hello World!  |
+| 24   | Nijat Muzaffarli |       CS | Hello, I wish I'm gonna graduate this semester. |
+| 25   | Doowoong Choi  | CS               | Hello WOrld!  |
+| 26   | Dongyoon Hwang | CS               | Hello WOrld!  |
+| 27   | Juyeon Ko      | CS               | Hello! |
+| 28   | JinHyeok Yang  | CS               | Hell o world  |
+| 29   | Joel Jang      | CS               | Wannabe AI master |
+| 30   | Geonu Kim      | CS               | Hello!        |
+| 31   |   Dongmin Kim  |               CS | Hello World! |