diff --git a/GESP/20231201.cpp b/GESP/20231201.cpp
index f3e63ea..6ada647 100644
--- a/GESP/20231201.cpp
+++ b/GESP/20231201.cpp
@@ -1,22 +1,22 @@
-// https://www.luogu.com.cn/problem/solution/B3925
-#include <iostream>
+#include <bits/stdc++.h>
 using namespace std;
 int main() {
-    long long n, i, j, k;
-    cin >> n >> i;
-    for (j = 1;; j++) {
-        bool flag = true;
-        long long ans = j * n + i;
-        for (k = 1; k < n; k++) {
-            if (ans % (n - 1)) {
-                flag = false;
+    int i = 0, j = 0;
+    int x, n;
+    cin >> n >> x;
+    int tmp = 0;
+    for (i = 1; i <= 100000000; i++) {
+        tmp = i;
+        for (j = 0; j < n; j++) {
+            if ((tmp - x) % n != 0 || tmp <= x)
                 break;
-            }
-            ans = ans / (n - 1) * n + i;
+            tmp = (tmp - x) / n * (n-1);
         }
-        if (flag) {
-            cout << ans;
-            return 0;
+        if (j == n) {
+            printf("%d\n", i);
+            exit(0);
         }
     }
+    printf("thats too more!");
+    return 0;
 }
\ No newline at end of file
diff --git a/GESP/WuHouZiFenTao.cpp b/GESP/WuHouZiFenTao.cpp
new file mode 100644
index 0000000..7946a2d
--- /dev/null
+++ b/GESP/WuHouZiFenTao.cpp
@@ -0,0 +1,22 @@
+#include <bits/stdc++.h>
+// https://blog.csdn.net/weixin_43772810/article/details/121048802
+// https://blog.csdn.net/weixin_43772810/article/details/121297946
+using namespace std;
+int main() {
+    int i = 0, j = 0;
+    int tmp = 0;
+    for (i = 1; i <= 10000; i++) {
+        tmp = i;
+        for (j = 0; j < 5; j++) {
+            if ((tmp - 1) % 5 != 0 || tmp <= 1)
+                break;
+            tmp = (tmp - 1) / 5 * 4;
+        }
+        if (j == 5) {
+            printf("there was %d peaches.\n", i);
+            exit(0);
+        }
+    }
+    printf("thats too more!");
+    return 0;
+}
\ No newline at end of file