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#include <iostream>

int main()
{
    int n, a, s, m;
	std::ios_base::sync_with_stdio(0);
    s = 0;
    m = 1001;
    std::cin>>n;
    for(int i = 0; i < n; ++i)
    {
        std::cin>>a;
        s += a;
        if (a & 1 && a < m)
            m = a;
    }
    if(s & 1 && s > m)
        s -= m;
    if(s == m)
        std::cout<<"NIESTETY";
    else
        std::cout<<s;
    std::cout<<std::endl;

    return 0;
}