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#include <iostream>

using namespace std;

#define MAXVAL 999999

bool isEven(int val){
        if( (val % 2) == 1){
                return 0;
        }
        else{
                return 1;
        }
}

int main(){
        int N, tmp, minUneven = MAXVAL;
        unsigned long int Counter = 0;

        cin >> N;

        for(int n=0; n<N;n++){
                cin >> tmp;
                if(!isEven(tmp)){
                        if(minUneven > tmp)
                                minUneven = tmp;
                }
                Counter += tmp;
        }

        if(isEven(Counter) == 1)
                cout << Counter << endl;
        else{
                if( (N > 1) && minUneven != MAXVAL)
                        cout << Counter - minUneven << endl;
                else
                        cout << "NIESTETY" << endl;
        }
        return 0;
}