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#include<cstdio>
#include<set>
#include<vector>
#include<algorithm>
#include<string.h>
#include<map>
#include<iostream>
using namespace std;

int n;

int main() {
	cin >> n;
	int sum = 0;
	int min_odd = 1000000;
	for(int i = 0; i < n; i++) {
		int t; cin >> t;
		sum += t;
		if (t & 1) min_odd = min(min_odd, t);		
	}
	if(sum & 1) sum -= min_odd;
	if(sum) cout << sum;
	else cout << "NIESTETY";
	return 0;
}