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#include<iostream>

using namespace std;

int n,p=0,suma=0,x=0;

int main()
{
	cin>>n;
	int tab[n];
	for (int i = 0; i < n; i++)
	{
		cin >> tab[i];
		suma+=tab[i];
		if(p==0 && tab[i]%2==1) p=tab[i];
		if(tab[i]%2==1 && p>tab[i])p=tab[i];
		
	}
	if(suma%2==1) suma=suma-p;
	if (suma==0)cout<<"NIESTETY";
	else cout << suma;
	return 0;
}