#include<bits/stdc++.h>

using namespace std;

int main() {
    for (int i = (int) sqrt(1000); i < 100; 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;
}