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#include <iostream>
using namespace std;

int main()
{
	int suma = 0, suma_np = 0, n, k, min = 1000;
	cin >> n;
	while (n--)
	{
		cin >> k;
		suma += k;
		if (k%2 && k < min)
				min = k;
	}
	
	if (suma%2)
		suma -= min;
	
	if (suma != 0)
		cout<<suma;
	else
		cout<<"NIESTETY";
	
	return 0;
}