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#include<iostream>
#include<algorithm>
//#define int long long
using namespace std;

main()
{
	ios_base::sync_with_stdio(0);
	
	int n, res=0, minnp=2*1e9;
	cin >> n;
	
	for(int i=1; i<=n; ++i)
	{
		int x;
		cin >> x;
		res+=x;
		if(x%2) minnp=min(minnp, x);
	}
	if(res%2) res-=minnp;
	if(res) cout << res << endl;
	else cout << "NIESTETY" << endl;
	return 0;
}