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#include <iostream>

using namespace std;

int main()
{
	ios::sync_with_stdio(false);

	int n, tmp;
	int sum = 0;
	int min = 1001;
	int c = 0;
	cin >> n;

	for (int i = 0; i < n; ++i)
	{
		cin >> tmp;
		sum += tmp;

		if (tmp & 1)
		{
			if (tmp < min) min = tmp;
			c++;
		}
	}

	if (c & 1)
		sum -= min;

	if (sum == 0)
		cout << "NIESTETY";
	else
		cout << sum;
	
	return 0;
}