diff --git "a/JHLEE325/202510/09 BOJ G5 \355\225\234\352\270\200 LCS.md" "b/JHLEE325/202510/09 BOJ G5 \355\225\234\352\270\200 LCS.md"
new file mode 100644
index 00000000..6130a8bf
--- /dev/null
+++ "b/JHLEE325/202510/09 BOJ G5 \355\225\234\352\270\200 LCS.md"	
@@ -0,0 +1,31 @@
+```java
+import java.io.*;
+import java.util.*;
+
+public class Main {
+    public static void main(String[] args) throws IOException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        StringTokenizer st;
+        
+        String A = br.readLine();
+        String B = br.readLine();
+
+        char[] a = A.toCharArray();
+        char[] b = B.toCharArray();
+
+        int n = a.length;
+        int m = b.length;
+
+        int[][] dp = new int[n + 1][m + 1];
+
+        for (int i = 1; i <= n; i++) {
+            for (int j = 1; j <= m; j++) {
+                if (a[i - 1] == b[j - 1]) dp[i][j] = dp[i - 1][j - 1] + 1;
+                else dp[i][j] = Math.max(dp[i - 1][j], dp[i][j - 1]);
+            }
+        }
+
+        System.out.println(dp[n][m]);
+    }
+}
+```