diff --git "a/JHLEE325/202601/31 BOJ G5 \354\244\204\354\226\264\353\223\234\353\212\224\354\210\230.md" "b/JHLEE325/202601/31 BOJ G5 \354\244\204\354\226\264\353\223\234\353\212\224\354\210\230.md"
new file mode 100644
index 00000000..668b9fc9
--- /dev/null
+++ "b/JHLEE325/202601/31 BOJ G5 \354\244\204\354\226\264\353\223\234\353\212\224\354\210\230.md"	
@@ -0,0 +1,44 @@
+```java
+import java.io.*;
+import java.util.*;
+
+public class Main {
+    public static void main(String[] args) throws Exception {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        StringTokenizer st;
+
+        int N = Integer.parseInt(br.readLine());
+
+        if (N == 1) {
+            System.out.println(0);
+            return;
+        }
+
+        Queue<Long> queue = new LinkedList<>();
+        for (int i = 1; i <= 9; i++) {
+            queue.add((long) i);
+        }
+
+        int count = 1;
+
+        while (!queue.isEmpty()) {
+            long current = queue.poll();
+            count++;
+
+            if (count == N) {
+                System.out.println(current);
+                return;
+            }
+
+            long lastDigit = current % 10;
+            
+            for (int i = 0; i < lastDigit; i++) {
+                long nextNum = (current * 10) + i;
+                queue.add(nextNum);
+            }
+        }
+
+        System.out.println("-1");
+    }
+}
+```