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#include <cstdio>

int main()
{
	int n, a, min = 1024, suma = 0;

	scanf("%d", &n);
	for (int i = 0; i < n; i++)
	{
		scanf("%d", &a);
		suma += a;

		if ((a & 1) == 1 && a < min)
		{
			min = a;
		}
	}

	if (min < 1024 && suma == min)
		printf("NIESTETY");
	else if ((suma & 1) == 0)
		printf("%d", suma);
	else
		printf("%d", suma - min);

	return 0;
}