diff --git a/README.md b/README.md
index 9db7253..952a52c 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,8 @@ Join link: [Google meet](https://meet.google.com/jyx-mxnq-kpk)
 
 ## 2024 1Q meet up list
 
-- [172th, 2024-03-02](https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/315), will be open
+- [173th, 2024-03-09](https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/320), will be open
+- [172th, 2024-03-02](https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/315), joined 4
 - [171th, 2024-02-24](https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/314), joined 4
 - [170th, 2024-02-17](https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/313), joined 7
 - [169th, 2024-02-10](https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/311), joined 5
@@ -323,11 +324,11 @@ and participate more than 30 online meetup, get the chicken gifticon.
 
 |Ranking|Name|Count|
 |-------|----|-----|
-|1|[Kim Jong Feel](https://github.com/jongfeel/)|8|
-|2|[Ji Yoon Choi](https://github.com/chichoon/)|8|
+|1|[Kim Jong Feel](https://github.com/jongfeel/)|9|
+|2|[Ji Yoon Choi](https://github.com/chichoon/)|9|
 |3|[yeslee-v](https://github.com/yeslee-v/)|7|
-|4|[Jeongan Lee](https://github.com/fkdl0048/)|6|
-|5|[TaeWon](https://github.com/ytw9699/)|6|
+|4|[Jeongan Lee](https://github.com/fkdl0048/)|7|
+|5|[TaeWon](https://github.com/ytw9699/)|7|
 |6|[Jiyun Yun](https://github.com/jeeyn)|5|
 |7|[YeongKwonMo](https://github.com/momoci99/)|4|
 |8|[Byeongguk Ahn](https://github.com/nonoaa/)|2|
diff --git a/Stamp/README.md b/Stamp/README.md
index 8578e48..cf34644 100644
--- a/Stamp/README.md
+++ b/Stamp/README.md
@@ -26,12 +26,12 @@
 
 | Name    | 01-06 (164th) | 01-13 (165th) | 01-20 (166th) | 01-27 (167th) | 02-03 (168th) | 02-10 (169th) | 02-17 (170th) | 02-24 (171th) | 03-02 (172th) | 03-09 (173th) | 03-16 (174th) | 03-23 (175th) | 03-30 (176th) |
 |---------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|
-| [Kim Jong Feel](https://github.com/jongfeel/) | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/301#issuecomment-1879487019"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/303#issuecomment-1890267064"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/305#issuecomment-1901576323"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/307#issuecomment-1912899483"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/309#issuecomment-1925017552"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/311#issuecomment-1936804673"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/313#issuecomment-1949594269"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/314#issuecomment-1962212674"><img src="approved_1Q.png"/></a> | 
-| [Ji Yoon Choi](https://github.com/chichoon) | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/301#issuecomment-1879491104"><img src="approved_1Q.png"/><img src="Starbucks_americano.JPG"/>book 13/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/303#issuecomment-1889333357"><img src="approved_1Q.png"/>book 14/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/305#issuecomment-1900200492"><img src="approved_1Q.png"/>book 15/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/307#issuecomment-1911198259"><img src="approved_1Q.png"/>book 16/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/309#issuecomment-1924108631"><img src="approved_1Q.png"/><img src="Starbucks_americano.JPG"/>book 17/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/311#issuecomment-1935898011"><img src="approved_1Q.png"/>book 18/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/313#issuecomment-1948476645"><img src="approved_1Q.png"/>book 19/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/314#issuecomment-1962177353"><img src="approved_1Q.png"/>book 20/20</a> | 
-| [TaeWon](https://github.com/ytw9699/) | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/301#issuecomment-1878766728"><img src="approved_1Q.png"/>book 3/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/303#issuecomment-1890232446"><img src="approved_1Q.png"/>book 4/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/305#issuecomment-1901545594"><img src="approved_1Q.png"/>book 5/20</a> | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/309#issuecomment-1924999702"><img src="approved_1Q.png"/><img src="Starbucks_americano.JPG"/>book 6/20</a> | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/313#issuecomment-1949553176"><img src="approved_1Q.png"/>book 7/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/314#issuecomment-1962141427"><img src="approved_1Q.png"/>book 8/20</a> | 
+| [Kim Jong Feel](https://github.com/jongfeel/) | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/301#issuecomment-1879487019"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/303#issuecomment-1890267064"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/305#issuecomment-1901576323"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/307#issuecomment-1912899483"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/309#issuecomment-1925017552"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/311#issuecomment-1936804673"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/313#issuecomment-1949594269"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/314#issuecomment-1962212674"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/315#issuecomment-1974180696"><img src="approved_1Q.png"/></a> | 
+| [Ji Yoon Choi](https://github.com/chichoon) | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/301#issuecomment-1879491104"><img src="approved_1Q.png"/><img src="Starbucks_americano.JPG"/>book 13/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/303#issuecomment-1889333357"><img src="approved_1Q.png"/>book 14/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/305#issuecomment-1900200492"><img src="approved_1Q.png"/>book 15/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/307#issuecomment-1911198259"><img src="approved_1Q.png"/>book 16/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/309#issuecomment-1924108631"><img src="approved_1Q.png"/><img src="Starbucks_americano.JPG"/>book 17/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/311#issuecomment-1935898011"><img src="approved_1Q.png"/>book 18/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/313#issuecomment-1948476645"><img src="approved_1Q.png"/>book 19/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/314#issuecomment-1962177353"><img src="approved_1Q.png"/>book 20/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/315#issuecomment-1973299400"><img src="approved_1Q.png"/><img src="IceChouxCreamLatte.jpg"/>book 1/20</a> | 
+| [TaeWon](https://github.com/ytw9699/) | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/301#issuecomment-1878766728"><img src="approved_1Q.png"/>book 3/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/303#issuecomment-1890232446"><img src="approved_1Q.png"/>book 4/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/305#issuecomment-1901545594"><img src="approved_1Q.png"/>book 5/20</a> | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/309#issuecomment-1924999702"><img src="approved_1Q.png"/><img src="Starbucks_americano.JPG"/>book 6/20</a> | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/313#issuecomment-1949553176"><img src="approved_1Q.png"/>book 7/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/314#issuecomment-1962141427"><img src="approved_1Q.png"/>book 8/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/315#issuecomment-1973275238"><img src="approved_1Q.png"/>book 9/20</a> | 
+| [Jeongan Lee](https://github.com/fkdl0048/) | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/303#issuecomment-1890138733"><img src="approved_1Q.png"/>book 6/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/305#issuecomment-1901567934"><img src="approved_1Q.png"/><img src="Starbucks_americano.JPG"/>book 7/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/307#issuecomment-1905664827"><img src="approved_1Q.png"/>book 8/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/309#issuecomment-1916582761"><img src="approved_1Q.png"/>book 9/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/311#issuecomment-1926451154"><img src="approved_1Q.png"/>book 10/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/313#issuecomment-1940367713"><img src="approved_1Q.png"/><img src="Starbucks_tarro_latte.jpg"/>book 11/20</a> | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/315#issuecomment-1965833148"><img src="approved_1Q.png"/>book 12/20</a> | 
 | [Byeongguk Ahn](https://github.com/nonoaa/) | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/301#issuecomment-1879481391"><img src="approved_1Q.png"/>book 9/20</a> | | | | | | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/314#issuecomment-1962202235"><img src="approved_1Q.png"/>book 10/20</a>
 | [yeslee-v](https://github.com/yeslee-v/) | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/301#issuecomment-1873972360"><img src="approved_1Q.png"/>book 9/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/303#issuecomment-1889508432"><img src="approved_1Q.png"/><img src="Starbucks_americano.JPG"/>book 10/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/305#issuecomment-1891127307"><img src="approved_1Q.png"/>book 11/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/307#issuecomment-1912056622"><img src="approved_1Q.png"/>book 12/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/309#issuecomment-1924082719"><img src="approved_1Q.png"/>book 13/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/311#issuecomment-1936796521"><img src="approved_1Q.png"/><img src="Starbucks_americano.JPG"/>book 14/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/313#issuecomment-1943075852"><img src="approved_1Q.png"/>book 15/20</a> | 
-| [Jeongan Lee](https://github.com/fkdl0048/) | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/303#issuecomment-1890138733"><img src="approved_1Q.png"/>book 6/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/305#issuecomment-1901567934"><img src="approved_1Q.png"/><img src="Starbucks_americano.JPG"/>book 7/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/307#issuecomment-1905664827"><img src="approved_1Q.png"/>book 8/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/309#issuecomment-1916582761"><img src="approved_1Q.png"/>book 9/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/311#issuecomment-1926451154"><img src="approved_1Q.png"/>book 10/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/313#issuecomment-1940367713"><img src="approved_1Q.png"/><img src="Starbucks_tarro_latte.jpg"/>book 11/20</a> | 
 | [Jiyun Yun](https://github.com/jeeyn) | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/301#issuecomment-1878090285"><img src="approved_1Q.png"/>book 3/20</a> | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/305#issuecomment-1893071984"><img src="approved_1Q.png"/><img src="ToffeeNutLatte.png"/>book 4/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/307#issuecomment-1911802039"><img src="approved_1Q.png"/>book 5/20</a> | |<a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/311#issuecomment-1926265824"><img src="approved_1Q.png"/>book 6/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/313#issuecomment-1945406706"><img src="approved_1Q.png"/>book 7/20</a> | 
 | [YeongKwonMo](https://github.com/momoci99/) | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/301#issuecomment-1879482959"><img src="approved_1Q.png"/><img src="ToffeeNutLatte.png"/>book 5/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/303#issuecomment-1888263140"><img src="approved_1Q.png"/>book 6/20</a> | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/307#issuecomment-1912900294"><img src="approved_1Q.png"/>book 7/20</a> | | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/313#issuecomment-1949569449"><img src="approved_1Q.png"/>book 8/20</a>