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#include <iostream>

using namespace std;

int main() {
	ios_base::sync_with_stdio(false);
	int N, temp, smallest = 2000;
	long long sum = 0;
	cin >> N;
	for(int i=0; i<N; i++) {
		cin >> temp;
		if((temp % 2 != 0) && (temp < smallest))
			smallest = temp;
		sum += temp;
	}
	if(sum % 2 == 0)
		cout << sum << endl;
	else {
		if(N == 1)	
			cout << "NIESTETY" << endl;
		else
			cout << sum - smallest << endl;
	}
	return 0;
}