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#include <iostream>

using namespace std;

int main()
{
    int n, s=0, mina=1002;
    cin>>n;
    for(int i=0 ; i<n ; i++)
    {
        int a;
        cin>>a;
        s+=a;
        if(a<mina)
        {
            if(a%2==1) mina=a;
        }
    }
    if(s%2==1)
    {
        if(s-mina>0 && (s-mina)%2==0)
        {
            cout<<s-mina;
            return 0;
        }
        else
        {
            cout<<"NIESTETY";
            return 0;
        }
    }
    else
    {
        cout<<s;
        return 0;
    }
    return 0;
}