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#include <cstdio>
#include <cstdint>
#include <climits>

const static uint32_t MAX_A = 1001;

using namespace std;

int main() {
	uint32_t n, a, minOdd, sum;
	sum = 0;
	minOdd = MAX_A;
	scanf("%lu", &n);
	for (uint32_t i = 0; i < n; ++i) {
		scanf("%lu", &a);
		sum += a;
		if (a & 1 && a < minOdd)
			minOdd = a;
	}
	if (sum & 1)
		sum -= minOdd;
	if (sum)
		printf("%lu", sum);
	else
		printf("NIESTETY");
	return 0;
}