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#include <cstdio>

int main(void) {
	unsigned n;
	scanf("%d", &n);

	unsigned short bill = 1001;
	unsigned sum = 0;

	unsigned short * tab = new unsigned short[n];
	for (unsigned i =0u; i < n; i++) {
		scanf("%hu", (tab+i));
		sum += tab[i];

		if ((tab[i] % 2) && (tab[i] < bill))
			bill = tab[i];
	}

	if (sum % 2) {
		if (sum == bill)
			printf("NIESTETY");
		else
			printf("%u", sum - bill);
	} else {
		printf("%u", sum);
	}
	
	delete [] tab;

	return 0;
}