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#include<bits/stdc++.h>

using namespace std;

int main () {
	ios_base::sync_with_stdio(false);
	int n;
	cin >> n;
	int mini = 0;
	int suma = 0;
	int ilenp = 0;
	int x;
	for(int i=0;i<n;i++) {
		cin >> x;
		suma += x;
		if(x%2==1){
			ilenp++;
			if(mini == 0 or x < mini) {
			 	suma += mini;
				suma -= x;
				mini = x;
			}
		}
	}
	int res = suma + (ilenp%2==0) * mini;
	if(res) cout << res << endl;
	else cout << "NIESTETY" << endl;

}