diff --git "a/LiiNi-coder/202511/25 BOJ \354\233\220\354\210\255\354\235\264 \354\212\244\355\217\254\354\270\240.md" "b/LiiNi-coder/202511/25 BOJ \354\233\220\354\210\255\354\235\264 \354\212\244\355\217\254\354\270\240.md"
new file mode 100644
index 00000000..4846d0df
--- /dev/null
+++ "b/LiiNi-coder/202511/25 BOJ \354\233\220\354\210\255\354\235\264 \354\212\244\355\217\254\354\270\240.md"	
@@ -0,0 +1,45 @@
+```java
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.util.*;
+
+public class Main{
+	private static int N;
+	private static char[] Arr;
+	public static void main(String[] args) throws IOException {
+		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+		N = Integer.parseInt(br.readLine());
+		Arr = new char[N];
+		Deque<int[]> q = new ArrayDeque<>();
+		Deque<int[]> buffer = new ArrayDeque<>();
+		q.add(new int[]{0, N/2, 0});
+		q.add(new int[]{N/2, N, 1});
+		for(int i = 0; i<7; i++){
+			while(!q.isEmpty()){
+				int[] temp = q.poll();
+				int s = temp[0]; int e = temp[1]; int isB = temp[2];
+				putString(s, e, isB);
+
+				if(s + 1 < e){
+					buffer.add(new int[]{s, (s + e)/2, 0});
+					buffer.add(new int[]{(s + e)/2, e, 1});
+				}
+			}
+			while(!buffer.isEmpty()){
+				q.add(buffer.poll());
+			}
+			System.out.println(String.valueOf(Arr));
+		}
+		// putString(0, N/2, false)+putString(N/2, N, true); // (0, N/2, false), (N/2, N, true)
+		// putString(0, N/4, false) + putString(N/4, N/2, true)
+
+		br.close();
+	}
+
+	private static void putString(int start, int end, int isB){
+		for(int i = start; i<end; i++)
+			Arr[i] = (isB==1) ? 'B':'A';
+	}
+}
+```