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#include <iostream>
int main()
{
    int n,tmp,mini=0,sum=0,suma=0;
    std::cin>>n;
    while(n>0)
    {
        std::cin>>tmp;
        if(tmp%2==1)
        {
            if(sum==0||tmp<mini)
                mini=tmp;
            sum++;
        }
        suma+=tmp;
        n--;
    }
    if(sum%2==0)
        mini=0;
    if(((suma-mini)%2)!=0 || suma-mini==0)
        std::cout<<"NIESTETY";
    else
        std::cout<<suma-mini;
    return 0;
}