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#include <iostream>
using namespace std;

int main()
{
	long long int i, n, sum, a, min_odd;

	cin >> n;
	sum = 0;
	min_odd = 1000;

	for (i = 0; i < n; ++i)
	{
		cin >> a;
		sum += a;
		if (a % 2 == 1)
			if (a < min_odd)
				min_odd = a;
	}
	
	if (sum % 2 == 1)
		sum -= min_odd;
	if (sum > 0)
		cout << sum;
	else
		cout << "NIESTETY";
	cout << endl;

	return 0;
}