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#include <iostream>
using namespace std;
int main()
{
    int n, y=1000, z;
    long long x;
    cin>>n>>x;
    if((n!=1)&&(x%2==0))
    {
        do
        {
            cin>>z;
            x+=z;
            if((z%2==0)&&(z<y))
                z=y;
            n--;
        }
        while(n>1);
        if(x%2!=0)
            cout<<x-z;
        else
            cout<<x;
    }
    else
        cout<<"NIESTETY";
    return 0;
}