diff --git "a/lkhyun/202502/12 BOJ \352\263\250\353\223\2344 \354\243\274\354\202\254\354\234\204 \352\262\214\354\236\204.md" "b/lkhyun/202502/12 BOJ \352\263\250\353\223\2344 \354\243\274\354\202\254\354\234\204 \352\262\214\354\236\204.md"
new file mode 100644
index 00000000..16a10890
--- /dev/null
+++ "b/lkhyun/202502/12 BOJ \352\263\250\353\223\2344 \354\243\274\354\202\254\354\234\204 \352\262\214\354\236\204.md"	
@@ -0,0 +1,23 @@
+```java
+import java.io.*;
+public class Main{
+    public static void main(String[] args) throws Exception{
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+        int N = Integer.parseInt(br.readLine());
+
+        double[] expectation = new double[N+1];
+
+        for(int i=1;i<=N;i++){
+            for(int k=1;k<=6;k++){
+                if(i-k >=0){
+                    expectation[i] += expectation[i-k];
+                }
+            }
+            expectation[i] = 1+(expectation[i]/6);
+        }
+        bw.write(expectation[N]+"");
+        bw.flush();
+    }
+}
+```