diff --git "a/lkhyun/202510/23 PGM Lv2 \355\212\234\355\224\214.md" "b/lkhyun/202510/23 PGM Lv2 \355\212\234\355\224\214.md"
new file mode 100644
index 00000000..1a5843ad
--- /dev/null
+++ "b/lkhyun/202510/23 PGM Lv2 \355\212\234\355\224\214.md"	
@@ -0,0 +1,14 @@
+```python
+def solution(s):
+    answer = []
+    unions = s[2:-2].split("},{")
+    
+    dic = {}
+    for union in unions:
+        u = list(map(int, union.split(",")))
+        for i in u:
+            dic[i] = dic.get(i,0) + 1
+            
+    dic = sorted(dic.items(),key=lambda x : x[1],reverse=True)
+    return [x[0] for x in dic]
+```