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#include <iostream>
//#include <conio.h>
using namespace std;
int n;
int main()
{
    cin>>n;
    int t[n];
    for(int i = 0; i<n; i++) cin>>t[i];
    int s = 0;
    for(int i = 0; i<n; i++) s = s + t[i];
    
    if(s%2 == 0) cout<<s;
    else
    {
        int m;
        for(int i = 0; i<n; i++) {if(t[i]%2 == 1) {m = t[i]; break;}}
         for(int i = 0; i<n; i++)
         {
                 if(t[i]%2 == 1 && t[i]<m) m = t[i];
                 }
         s = s - m;
         if(s!=0) cout<<s;
         else cout<<"NIESTETY";
         }        
//getch();
}