diff --git "a/0224LJH/202512/16 BOJ \355\224\204\353\236\231\355\203\210 \355\217\211\353\251\264.md" "b/0224LJH/202512/16 BOJ \355\224\204\353\236\231\355\203\210 \355\217\211\353\251\264.md"
new file mode 100644
index 00000000..758c742e
--- /dev/null
+++ "b/0224LJH/202512/16 BOJ \355\224\204\353\236\231\355\203\210 \355\217\211\353\251\264.md"	
@@ -0,0 +1,72 @@
+```java
+import java.util.*;
+import java.io.*;
+
+public class Main {
+	/*
+	 * R도, C도 아래의 조건이 성립해야함
+	 * S초일때, 대상의 좌표를 N^(1~s)로 나누었을때, 나머지가 ( (N-K)/2~ (N+k)/2 -1 ) * N^(0~s-1)에 포함되면 됨. 이걸 하나라도 만족하면 그 칸은 검정.
+	 * */
+	
+	static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+	static StringBuilder sb = new StringBuilder();
+    
+    static int s,N,K,R1,R2,C1,C2;
+
+    public static void main(String[] args) throws IOException {
+        init();
+        process();
+        print();
+
+    }
+    
+    private static void init() throws IOException {
+        
+        StringTokenizer st = new StringTokenizer(br.readLine());
+        s = Integer.parseInt(st.nextToken());
+        N = Integer.parseInt(st.nextToken());
+        K = Integer.parseInt(st.nextToken());
+        R1 = Integer.parseInt(st.nextToken());
+        R2 = Integer.parseInt(st.nextToken());
+        C1 = Integer.parseInt(st.nextToken());
+        C2 = Integer.parseInt(st.nextToken());
+
+        
+
+    }
+    
+  
+    private static void process() {
+    	for (int i = R1; i <= R2; i++) {
+    		for (int j = C1; j <= C2; j++) {
+
+    			boolean isBlack = check(i,j);
+    			sb.append(isBlack?1:0);
+    		}
+    		sb.append("\n");
+    	}
+
+    }
+    
+    private static boolean check(int y,int x) {
+
+    	for (int time = 1; time <= s; time++) {
+    		int divisor = (int) Math.pow(N,time);
+    		int yRemainder = y%divisor;
+    		int xRemainder = x%divisor;
+    		
+    		int st = (N-K)/2 * (divisor/N);
+    		int end = ((N+K)/2)* (divisor/N)-1;
+    		
+    		if(yRemainder >= st && yRemainder <= end 
+    				&& xRemainder >= st && xRemainder <= end) return true;
+    	}
+    	return false;
+    }
+    
+
+    private static void print() {
+        System.out.print(sb);
+    }
+}
+```