#include <bits/stdc++.h>
using namespace std;
int main()
{
    int a, b, c, d, x, n;
    for(n=32; n<=99; n++)
    {
        x = n * n;
        a = x / 1000;
        b = x / 100 % 10;
        c = x % 100 / 10;
        d = x % 10;
        if((a == b) && (c == d))
        {
            cout << x;
        }
    }
    return 0;
}