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
33
34
35
36
37
38
39
40
#include <iostream>

using namespace std;

int main() {
	std::ios_base::sync_with_stdio (false);
	long n;
	cin >> n;
	long sumeven = 0;
	long sumodd = 0;
	long minodd = 1001;
	long countodd = 0;
	
	long note = 0;

	for (long i = 0; i < n; ++i) {
		cin >> note;
		if (note % 2 == 0) {
			sumeven += note;
		} else {
			++countodd;
			sumodd += note;
			if (note < minodd) {
				minodd = note;
			}
		}
	}

	if (n == 1 && countodd == 1) {
		cout << "NIESTETY" << endl;
		return 0;
	}

	if (countodd % 2 == 1) {
		sumodd -= minodd;
	}

	cout << sumodd + sumeven << endl;
	return 0;
}