diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..a0193bd
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,13 @@
+cmake_minimum_required(VERSION 3.10)
+
+# 1. 프로젝트 이름 설정 (원하는 이름으로 변경 가능)
+project(MyProject)
+
+# 2. C++ 표준 설정 (C++11, 14, 17, 20 중 선택)
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+# 3. 실행 파일 생성
+# add_executable(실행파일명 소스파일.cpp)
+# 예: main.cpp를 컴파일하여 my_program이라는 실행 파일을 만듦
+add_executable(my_program /weekly/week02/BOJ_1965_상자넣기/Hexeong.cpp)
\ No newline at end of file
diff --git "a/weekly/week10/BOJ_12919_A\354\231\200B2/Hexeong.java" "b/weekly/week10/BOJ_12919_A\354\231\200B2/Hexeong.java"
new file mode 100644
index 0000000..2d2084d
--- /dev/null
+++ "b/weekly/week10/BOJ_12919_A\354\231\200B2/Hexeong.java"
@@ -0,0 +1,38 @@
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+
+public class Main {
+    // AI의 피드백 : SB를 1개로 유지하고 process가 끝난 이후 원상태로 복구하는 방식으로 최적화하자.
+    public static void main(String[] args) throws Exception {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+
+        String S = br.readLine();
+        String T = br.readLine();
+
+        StringBuilder sb = new StringBuilder(T);
+
+        System.out.println(process(sb, S) ? 1 : 0);
+    }
+
+    private static boolean process(StringBuilder sb, String S) {
+        if (sb.toString().equals(S)) {
+            return true;
+        }
+        if (sb.length() <= S.length()) {
+            return false;
+        }
+
+        if (sb.charAt(sb.length() - 1) == 'A' && process(removeAtoSb(sb), S)) {
+            return true;
+        }
+        return sb.charAt(0) == 'B' && process(reverseAndDeleteBtoSb(sb), S);
+    };
+
+    private static StringBuilder removeAtoSb(StringBuilder sb) {
+        return new StringBuilder(sb).deleteCharAt((sb.length() - 1));
+    }
+
+    private static StringBuilder reverseAndDeleteBtoSb(StringBuilder sb) {
+        return new StringBuilder(sb).reverse().deleteCharAt((sb.length() - 1));
+    }
+}