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#include <bits/stdc++.h>
using namespace std;

int main () {
	ios_base::sync_with_stdio(0);
	int n, a, res=0, mini=1000000;
	cin >> n;
	for (int i=1; i<=n; i++) {
		cin >> a;
		if (a % 2 ==1) mini= min(a, mini);
		res+=a;
	}
	if (n==1 & res % 2==1) cout << "NIESTETY\n";
	else  {
		if (res % 2 ==1) res-=mini;
		cout << res << "\n";
	}
}