diff --git "a/zinnnn37/202510/21 BOJ G4 \353\213\250\354\226\264 \354\210\230\355\225\231.md" "b/zinnnn37/202510/21 BOJ G4 \353\213\250\354\226\264 \354\210\230\355\225\231.md"
new file mode 100644
index 00000000..6df80ae4
--- /dev/null
+++ "b/zinnnn37/202510/21 BOJ G4 \353\213\250\354\226\264 \354\210\230\355\225\231.md"	
@@ -0,0 +1,48 @@
+```java
+import java.io.*;
+import java.util.Arrays;
+
+public class BJ_1339_단어_수학 {
+
+    private static final BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+    private static final BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+
+    private static int N, ans;
+    private static int[] cnt;
+
+    public static void main(String[] args) throws IOException {
+        init();
+        sol();
+    }
+
+    private static void init() throws IOException {
+        N = Integer.parseInt(br.readLine());
+        cnt = new int[26];
+        ans = 0;
+
+        for (int i = 0; i < N; i++) {
+            String input = br.readLine();
+
+            int len = input.length();
+            for (int j = 0; j < len; j++) {
+                cnt[input.charAt(j) - 'A'] += (int) Math.pow(10, len - 1 - j);
+            }
+        }
+        Arrays.sort(cnt);
+    }
+
+    private static void sol() throws IOException {
+        int num = 9;
+
+        for (int i = 25; i >= 0 && num > 0; i--) {
+            ans += cnt[i] * num--;
+        }
+
+        bw.write(ans + "");
+        bw.flush();
+        bw.close();
+        br.close();
+    }
+
+}
+```
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