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#include <iostream>
using namespace std;

int main()
{
    int n, temp;
    int sum = 0;
    int lowest = 1001;
    cin>>n;
    for(int i=0; i<n; ++i){
        cin>>temp;
        sum += temp;
        if(lowest > temp && temp % 2 == 1)
            lowest = temp;
    }
    if (sum % 2 == 0){
        cout<<sum<<endl;
    }
    else{
        if(lowest != 1001 && n > 1)
            cout<<(sum - lowest)<<endl;
        else
            cout<<"NIESTETY"<<endl;
    }
    return 0;
}