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//Trace On                                                                      
#include <iostream>                                                             
#include <cstdlib>                                                              

using namespace std;

int n;
int b[99];

int money;


int min()
{

	int min = 9999;

	int index = 1;
	if (b[0] % 2 != 0) {
		min = b[0];
		index = 0;
	}
	for (int i = 1; i < n; i++)
		if (b[i] < min && b[i] % 2 != 0) {
			min = b[i];
			index = i;
		}
	for (int i = index; i < n - 1; i++)
	{
		b[i] = b[i + 1];
	}
	b[n - 1] = 0;
	return min;
}

int main()
{

	do {
		cin >> n;
	} while (n < 1 || n > 1000000);

	for (int i = 0; i < n; i++)
	{
		do {
			cin >> b[i];
		} while (b[i] < 1 || b[i] > 1000);
		money += b[i];
	}
	while (money % 2 != 0)
	{
		money -= min();
	}
	if (money % 2 == 0)
		if (money != 0)
			cout << money;
		else cout << "NIESTETY";



		system("pause");
}