1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
#include <cstdio>

using namespace std;

int main()
{
	int sum = 0, m = 0, cnt, tmp;
	scanf("%d", &cnt);

	for (int i = 0; i < cnt; i++) {
		scanf("%d", &tmp);
		sum += tmp;
		if (tmp & 1 && (m == 0 || tmp < m))
			m = tmp;
	}

	if ((sum & 1) == 0)
		printf("%d\n", sum);
	else if (sum > m)
		printf("%d\n", sum - m);
	else
		printf("NIESTETY\n");

	return 0;
}