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#include <iostream>

using namespace std;

int main()
{
    int n, min, t, s;
    s = 0;
    t = 2000;
    cin >> n;
    for(int i=0; i<n; i++)
    {
        cin >> t;
        s+=t;
        if(t%2==1 && t<min) min = t;
    }
    if(s%2==1)
    {
        if(n!=1) cout << s-min;
        else cout << "NIESTETY";
    }
    else
        cout << s;
    return 0;
}