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#include <iostream>
#include <cstdio>
using namespace std;

int n, a, count, money, minMoney;

int main() {
	ios_base::sync_with_stdio(0);
	
	minMoney = 1001;
	
	cin >> n;
	for(int i = 1; i <= n; i++) {
		cin >> a;
		money = money + a;
		if(a % 2 == 1) {
			minMoney = min(minMoney, a); 
			count++;
		}
	}
	if(count % 2 == 0) cout << money;
	else if(n != 1) cout << money - minMoney;
	else cout << "NIESTETY";
	
	return 0;
}