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
26
27
28
29
30
#include <iostream>

using namespace std;

int main() {
	ios_base::sync_with_stdio(0);

      	int n, x;
	cin >> n;

	int r = 0;
	int m = 1000;

	for (int i = 0; i < n; i++) {
		cin >> x;
		r += x;

		if (x % 2) m = min(m, x);
	}

	if (r % 2) r -= m;

	if (r == 0) {
		cout << "NIESTETY" << endl;
	} else {
		cout << r << endl;
	}

	return 0;
}