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#include <stdio.h>

int main()
{
	int sum = 0, smallestOdd = 1001;
	int n;
	scanf("%i", &n);
	for(int i = 0; i < n; ++i)
	{
		int tmp;
		scanf("%i", &tmp);
		sum += tmp;
		if(tmp%2 == 1 && tmp < smallestOdd) smallestOdd = tmp;
	}
	if(sum%2 == 1) sum -= smallestOdd;
	if(sum == 0) printf("NIESTETY\n");
	else printf("%i\n", sum);
	return 0;
}