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#include <cstdio>
int main()
{
 	long long sum=0;
 	int lowest =0;
 	int temp;
 	int n;
 	scanf("%d", &n);
 	while(n--) {
			   		scanf("%d", &temp);
			   		sum=sum+temp;
			   		if(temp%2==1&&(lowest==0||temp<lowest)) {lowest=temp;}
			   }
    if(sum%2==1) sum-=lowest;
    if(sum==0) printf("NIESTETY"); else printf("%lld", sum);
    return 0;
}