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#include <iostream>

using namespace std;

int main() {
	ios_base::sync_with_stdio(0);

	int bills;
	int bill;
	int sum = 0;
	int odd_ct = 0;
	int min_odd = 1024;

	cin >> bills;
	for (int i = 0; i < bills; ++i) {
		cin >> bill;
		sum += bill;
		if (bill % 2 == 1) {
			++odd_ct;
			if (min_odd > bill) {
				min_odd = bill;
			}
		}
	}

	if (odd_ct % 2 == 1) {
		sum -= min_odd;
	}

	if (sum > 0) {
		cout << sum << endl;
	} else {
		cout << "NIESTETY" << endl;
	}

	return 0;
}