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
#include <cstdlib>
#include <iostream>

using namespace std;

int main(int argc, char *argv[])
{
    int a,lowest=0,ile=0,input, ilenp=0;
    cin >> a;
    int c=0;
    for(int b=0; b < a;b++){
            cin >> input;
             ile+=input;
            if(input%2==1) {
                 if(c==0) lowest = input;
                 lowest = min(lowest,input);
                 c++;
                 ilenp++;
                 } 
            }
    if(ilenp==1 && a==1){ cout << "NIESTETY";
    return false;
    }
    if(ile%2==1) ile=ile-lowest;
    cout << ile;        
    return false;
}