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#include<iostream>
#include<algorithm>

using namespace std;

int main()
{
    int n,suma=0;
    cin >> n;
     int a,mini=1001;
   for(int i=0;i<n;i++)
    {
        cin >> a;
        if(a%2==1)mini=min(a,mini);
        suma+=a;
    }
    if(suma%2==1 && n==1)cout << "NIESTETY";
    else if(suma%2==1)cout << suma-mini;
    else cout << suma;
}