#include <cstdio>
#include <algorithm>

using namespace std;

const int MAXN = 1e6+10;

int n, a[MAXN], total, min_odd = MAXN;

int main() {
	scanf("%d", &n);
	for (int i = 1; i <= n; i++) {
		scanf("%d", &a[i]);
		total += a[i];
		if (a[i]%2 == 1) min_odd = min(min_odd, a[i]);
	}
	
	if (n == 1 && a[1]%2 == 1) {
		printf("NIESTETY\n");
		return 0;
	}
	
	
	int kochamjulie = total - min_odd * (total%2);
	printf("%d\n", kochamjulie);
	
	return 0;
}