#include <bits/stdc++.h>
using namespace std;

bool is_octal_palindrome(int n) {
    string s1 = "";
    while (n) {
        s1 += to_string(n % 8);
        n /= 8;
    }
    string s2 = s1;
    reverse(s2.begin(), s2.end());
    return s1 == s2;
}

int main() {
    int n;
    cin >> n;

    int s = (int)sqrt(n);
    for (int i = 1; i <= s; i++) {
        int s2 = i * i;
        if (is_octal_palindrome(s2)) cout << s2 << " ";
    }
    return 0;
}