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#include <iostream>
using namespace std;
int main()
{
ios_base::sync_with_stdio(0);	
int n, il_niep = 0, min_niep = 1000, s = 0, a, i;
cin >> n;
for(i = 0; i < n; ++i) {
	cin >> a;
	s += a;
	if (a % 2 == 1) {
		il_niep++;
		min_niep = min(min_niep, a);
	}	
}
if ( n==1) {
	if (il_niep == 1) cout <<"NIESTETY";
	else cout << s;
	}
else if (il_niep % 2 == 0) cout << s;
	else cout << s - min_niep;


	return 0;
}