diff --git a/Stamp/README.md b/Stamp/README.md
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--- a/Stamp/README.md
+++ b/Stamp/README.md
@@ -26,13 +26,13 @@
 
 | 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> | 
-| [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> | 
-| [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> | 
-| [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> | 
-| [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> | 
-| [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> | 
-| [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> | 
+| [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> | 
+| [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> | 
+| [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> | 
+| [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> | 
+| [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> | 
+| [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>
 | [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> | 
 
 ### 2023 4Q, 10-07 (151th) ~ 12-30 (163th)
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