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// kie.cpp : Defines the entry point for the console application.
//

#include <iostream>
#include <vector>

using namespace std;


int main(int argc, char* argv[])
{
	int N;
	scanf("%d", &N);
	int curr;
	int sum = 0;
	int min_nieparzyste = 0x7F11FF11;
	for(int i=0; i<N; i++)
	{
		scanf("%d", &curr);
		sum += curr;
		if(curr % 2 == 1) {
			min_nieparzyste = min(min_nieparzyste, curr);
		}
	}
	if(sum%2==0) {
		cout << sum << endl;
	} else { // sum % 2 == 1
		if(N==1)
			cout << "NIESTETY\n";
		else
			cout << (sum- min_nieparzyste) << endl;
	}
	return 0;
}