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#include <cstdio>

using namespace std;

int main() {
	int n, tmp, sum=0, numOfOdd=0, lowestOdd=9999;
	
	scanf("%d", &n);
	
	for (int i=0; i<n; ++i) {
		scanf("%d", &tmp);
		sum += tmp;
		
		if (tmp%2 == 1) {
			++numOfOdd;
			
			if (lowestOdd > tmp)
				lowestOdd = tmp;
		}
	}
	
	if (numOfOdd%2 == 1)	//This ensures numOfOdd>=1 and lowestOdd=/=9999
		sum -= lowestOdd;
	
	if (sum == 0)
		printf("NIESTETY\n");
	else
		printf("%d\n", sum);
	
	return 0;
}