@@ -0,0 +1,16 @@
+#include<bits/stdc++.h>
+
+using namespace std;
+int main() {
+ for (int i = 10; i*i <= 9999; i++) {
+ int n = i * i;//n is a square number;
+ if (n < 1000 || n > 9999)continue;
+ int high = n / 100;
+ int low = n % 100;
+ if (high % 11 == 0 && low % 11 == 0) {
+ cout << n << endl;
+ }
+ return 0;
+}
