diff --git a/code_study/Baekjoon/python/16946.py b/code_study/Baekjoon/python/16946.py
index 759e37e..45ea841 100644
--- a/code_study/Baekjoon/python/16946.py
+++ b/code_study/Baekjoon/python/16946.py
@@ -48,20 +48,10 @@ for x, y in wall :
 
         if 0 <= nx < M and 0 <= ny < N and area_num[ny][nx] != -1 :
             area = area_num[ny][nx]
-            
-            if len(neighbor) == 0 : 
-                cnt += area_size[area]
-                neighbor.append(area)
-            else :
-                dupli_check = True
+            neighbor.append(area)
 
-                for n in neighbor :
-                    if n == area :
-                        dupli_check = False
-                
-                if dupli_check :
-                    cnt += area_size[area]
-                    neighbor.append(area)
+    for n in set(neighbor) :
+        cnt += area_size[n]
     
     res[y][x] = cnt % 10