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
#include <iostream>

using namespace std;

typedef long long ll;

int main()
{
    ios_base::sync_with_stdio(0);
    ll n;
    cin >> n;
    ll min_n = 1000000000, s = 0;
    ll a;
    for (int i = 0; i < n; ++i)
    {
        cin >> a;
        s += a;
        if (a % 2 == 1) min_n = min(min_n, a);
    }
    if (s % 2 == 0)
    {
        cout << s;
        return 0;
    }
    s -= min_n;
    if (s != 0) cout << s;
    else cout << "NIESTETY";
    return 0;
}