#include <iostream>
#include <cmath>
using namespace std;

bool current_variables_is_arithmetic_progression(const int& a, const int& b, const int& c) {
    if (pow(c, 2) - pow(b, 2) == pow(b, 2) - pow(a, 2)) {
        return true;
    }
    return false;
}

void task() {
    int a = 32, b, c;
    while (true) {
        for (int b = a + 1; b < 100; b++) {
            for (int i = 100; i > b; i--) {
                c = i;
                if (current_variables_is_arithmetic_progression(a, b, c)) {
                    cout << pow(b, 2);
                }
            }
        }
        a++;
    }
}

int main() {
    task();

    system("PAUSE");
    return 0;
}