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#include <iostream>
using namespace std;

/* run this program using the console pauser or add your own getch, system("pause") or input loop */

int main() {
	int n, sum, oddCounter, minOdd, currentNumber;
	cin >> n;
	
	sum = 0;
	minOdd = 999;
	oddCounter = 0;
	
	for (int i = 0; i < n; i++) {
		cin >> currentNumber;
		sum += currentNumber;
		if (currentNumber % 2 == 1) {
			oddCounter++;
			if (currentNumber < minOdd) {
				minOdd = currentNumber;	
			}
		}
	}
	
	if (oddCounter % 2 == 1) {
		sum -= minOdd;
	}
	
	if (sum == 0) {
		cout << "NIESTETY";
	} else {
		cout << sum;
	}
	return 0;
}