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#include <iostream>

int main(void) {
    int n = 0;
    int total   = 0;
    int n_odds  = 0;
    short min_odd = 1001;
    std::cin >> n;
    for (int i = 0; i < n; ++i) {
        short a;
        std::cin >> a;
        total += a;
        if ((a % 2) != 0) {
            ++n_odds;   
            min_odd = std::min<short>(min_odd, a);
        }
    }
    if ((n_odds % 2) != 0) {
        total -= min_odd;
    }
    if (total > 0) {
        std::cout << total << std::endl;
    } else {
        std::cout << "NIESTETY" << std::endl;
    }
    return 0;
}