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#include <iostream>

using namespace std;

int main(){
    int n;
    cin >> n;
    int tab[n];
    int suma = 0;
    
    for(int i = 0; i < n; i++){
        cin >> tab[i];
        suma += tab[i];
    }
    
    if(suma%2 == 0)
        cout << suma;
    else{
        int max = 0;
        for(int i = 0; i < n; i++){
            if(tab[i]%2 != 0){
                if((suma - tab[i]) > max)
                    max = (suma - tab[i]);
            }
        }
        
        if(n == 1)
            cout << "NIESTETY";
        else
            cout << max;
    }
    
    return 0;
}