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#include <iostream>


int main()
{
	int n, tmp, sum = 0, min_odd = 1001;
	std::cin >> n;
	while (n--) {
		std::cin >> tmp;
		if ((tmp & 1) && tmp < min_odd) {
			min_odd = tmp;
		}
		sum += tmp;
	}
	if (sum & 1) {
		if (((sum - min_odd) & 1) || sum == min_odd) {
			std::cout << "NIESTETY" << std::endl;
		} else {
			std::cout << sum - min_odd << std::endl;
		}
	} else {
		std::cout << sum << std::endl;
	}

	return 0;
}