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
31
32
#include <iostream>
#include <cstdio>
#include <ctime>
#include <algorithm>
#include <queue>
#include <vector>
using namespace std;

int main() {
	ios_base::sync_with_stdio(0);
	int n;
	cin >> n;
	int mini = 1e9;
	int ile = 0;
	int sum = 0;

	for(int i = 0; i < n; ++i) {
		int x;
		cin >> x;
		sum += x;
		if(x & 1) {
			mini = min(mini, x);
			ile++;
		}
	}

	if(ile & 1) sum -= mini;
	if(sum <= 0) cout << "NIESTETY\n";
	else cout << sum << endl;
	//system("pause");
	return 0;
}