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#include <cstdio>

static const int MAX_BANKNOTE = 1e6;

int main()
{
	int n;
	int sum = 0;
	int minOdd = MAX_BANKNOTE;

	scanf("%d", &n);

	while (n--)
	{
		int banknote;
		scanf("%d", &banknote);

		if ((banknote & 1) && (minOdd > banknote))
			minOdd = banknote;

		sum += banknote;
	}

	if (sum & 1)
		sum -= minOdd;

	if (sum == 0)
		puts("NIESTETY");
	else
		printf("%d\n", sum);

	return 0;
}