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#include <iostream>

using namespace std;

int main()
{
	int n;
	long long Sum = 0;
	int minOdd = 1e6+1;
	bool isOddOdd = false;
	int a;
	cin >> n;
	for(int i = 0; i < n; i++)
	{
		cin >> a;
		Sum += a;
		if(a % 2)
		{
			isOddOdd = !isOddOdd;
			if(minOdd > a)
				minOdd = a;
		}
	}
	if(n == 1 && isOddOdd)
		cout << "NIESTETY" << endl;
	else
	{
		if(isOddOdd)
			cout << Sum-minOdd << endl;
		else
			cout << Sum << endl;
	}
	
	return 0;
}