diff --git a/leetcode3/1034. Coloring A Border.py b/leetcode3/1034. Coloring A Border.py
new file mode 100644
index 00000000..840317d3
--- /dev/null
+++ b/leetcode3/1034. Coloring A Border.py	
@@ -0,0 +1,44 @@
+class Solution:
+    def colorBorder(self, grid, row, col, color):
+        m = len(grid)
+        n = len(grid[0])
+
+        target = grid[row][col]
+        visited = [[False] * n for _ in range(m)]
+        border = []
+
+        directions = [(1, 0), (-1, 0), (0, 1), (0, -1)]
+
+        def dfs(r, c):
+            visited[r][c] = True
+
+            is_border = False
+
+            for dr, dc in directions:
+                nr = r + dr
+                nc = c + dc
+
+                # 배열의 가장자리
+                if nr < 0 or nr >= m or nc < 0 or nc >= n:
+                    is_border = True
+                    continue
+
+                # 다른 색과 인접
+                if grid[nr][nc] != target:
+                    is_border = True
+                    continue
+
+                # 같은 색이고 아직 방문하지 않았다면 DFS
+                if not visited[nr][nc]:
+                    dfs(nr, nc)
+
+            if is_border:
+                border.append((r, c))
+
+        dfs(row, col)
+
+        # border만 색칠
+        for r, c in border:
+            grid[r][c] = color
+
+        return grid
diff --git "a/leetcode3/\352\271\200\353\257\274\354\240\234/3838_weighted-word-mapping.py" "b/leetcode3/\352\271\200\353\257\274\354\240\234/3838_weighted-word-mapping.py"
new file mode 100644
index 00000000..0e780c2c
--- /dev/null
+++ "b/leetcode3/\352\271\200\353\257\274\354\240\234/3838_weighted-word-mapping.py"
@@ -0,0 +1,20 @@
+def mapWordWeights(words, weights):
+    arr = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q',
+           'r','s','t','u','v','w','x','y','z']
+    arr2 = ['z','y','x','w','v','u','t','s','r','q','p','o','n','m','l','k','j',
+           'i','h','g','f','e','d','c','b','a']
+    ret = ""
+
+    for word in words:
+        weight = 0
+        for n in range(len(word)):
+            weight += weights[arr.index(word[n])]
+        ret+=arr2[weight % 26]
+
+    return ret
+
+
+words = ["abcd","def","xyz"]
+weights = [5,3,12,14,1,2,3,2,10,6,6,9,7,8,7,10,8,9,6,9,9,8,3,7,7,2]
+
+print(mapWordWeights(words,weights))