diff --git "a/2025-season6/13\354\243\274\354\260\250/\354\265\234\354\230\201\352\266\214/Solution.java" "b/2025-season6/13\354\243\274\354\260\250/\354\265\234\354\230\201\352\266\214/Solution.java"
new file mode 100644
index 0000000..f0c22a3
--- /dev/null
+++ "b/2025-season6/13\354\243\274\354\260\250/\354\265\234\354\230\201\352\266\214/Solution.java"
@@ -0,0 +1,25 @@
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class Solution {
+
+    public String solution(String[] participant, String[] completion) {
+        Map<String, Integer> map = new HashMap<>();
+
+        String answer = "";
+        for (String s : participant) {
+            map.put(s, map.getOrDefault(s, 0) + 1);
+        }
+        for (String s : completion) {
+            map.put(s, map.getOrDefault(s, 0) - 1);
+        }
+        for (String s : map.keySet()) {
+            if (map.get(s) != 0) {
+                answer = s;
+            }
+        }
+        System.out.println(answer);
+        return answer;
+    }
+}