diff --git "a/khj20006/202509/07 BOJ P5 \355\217\255\355\203\204 \353\215\230\354\247\200\353\212\224 \355\203\234\354\230\201\354\235\264.md" "b/khj20006/202509/07 BOJ P5 \355\217\255\355\203\204 \353\215\230\354\247\200\353\212\224 \355\203\234\354\230\201\354\235\264.md"
new file mode 100644
index 00000000..2f7a07fc
--- /dev/null
+++ "b/khj20006/202509/07 BOJ P5 \355\217\255\355\203\204 \353\215\230\354\247\200\353\212\224 \355\203\234\354\230\201\354\235\264.md"	
@@ -0,0 +1,93 @@
+```java
+import java.util.*;
+import java.io.*;
+
+class IOController {
+	BufferedReader br;
+	BufferedWriter bw;
+	StringTokenizer st;
+
+	public IOController() {
+		br = new BufferedReader(new InputStreamReader(System.in));
+		bw = new BufferedWriter(new OutputStreamWriter(System.out));
+		st = new StringTokenizer("");
+	}
+
+	String nextLine() throws Exception {
+		String line = br.readLine();
+		st = new StringTokenizer(line);
+		return line;
+	}
+
+	String nextToken() throws Exception {
+		while (!st.hasMoreTokens()) nextLine();
+		return st.nextToken();
+	}
+
+	int nextInt() throws Exception {
+		return Integer.parseInt(nextToken());
+	}
+
+	long nextLong() throws Exception {
+		return Long.parseLong(nextToken());
+	}
+
+	double nextDouble() throws Exception {
+		return Double.parseDouble(nextToken());
+	}
+
+	void close() throws Exception {
+		bw.flush();
+		bw.close();
+	}
+
+	void write(String content) throws Exception {
+		bw.write(content);
+	}
+
+}
+
+public class Main {
+
+	static IOController io;
+
+	//
+
+	static int N, M;
+	static long[][] h, c, s;
+
+	public static void main(String[] args) throws Exception {
+
+		io = new IOController();
+
+		N = io.nextInt();
+		M = io.nextInt();
+		h = new long[N+1][N+1];
+		c = new long[N+1][N+1];
+		s = new long[N+1][N+1];
+		for(int i=0;i<N;i++) for(int j=0;j<N;j++) h[i][j] = -io.nextLong();
+
+		for(int i=0;i+M<=N;i++) {
+			for(int j=0;j+M<=N;j++) {
+				long res = h[i][j] - c[i][j];
+				s[i+M/2][j+M/2] = res;
+				c[i+1][j] += h[i][j];
+				c[i][j+1] += h[i][j];
+				c[i+1][j+1] -= h[i][j];
+				c[i+M][j] -= res;
+				c[i][j+M] -= res;
+				c[i+M][j+M] += res;
+			}
+		}
+
+		for(int i=0;i<N;i++) {
+			for(int j=0;j<N;j++) io.write(s[i][j] + " ");
+			io.write("\n");
+		}
+
+		io.close();
+
+	}
+
+}
+```