1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
#include <cstdio>

int main() {
	int N,min=0;
	long long int sum = 0;
	
	scanf("%d",&N);
	for (int i=0; i<N; ++i) {
		int a;
		scanf("%d",&a);
		sum += a;
		if ( ((a % 2) == 1) && (min==0 || a<min)) {
			min = a;
		}
	}

	if ((sum % 2) == 1) sum -= min;

	if (sum > 0) printf("%lld\n",sum);
	else printf("NIESTETY\n");

	return 0;
}