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#include <iostream>
using namespace std;

int main() {
	int n, a, min = 1000005, suma = 0, odd = 0;
	cin >> n;
	for (int i=0; i<n ; i++)
	{
		cin >> a;
		if(a%2 != 0){
			odd++;
			if(min>a)
				min = a;
		}
		suma += a;
	}
	if(odd != 1)
	{
		if(odd % 2 == 1)
			suma -= min;
		cout << suma;
	}
	else
		cout << "NIESTETY";
	return 0;
}