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#include<iostream>
using namespace std;

int main()
{
int n, suma=0;
bool par=true;
cin >> n;
short int a,b=1000;
	for (int i=0;i<n;i++)
	{
	cin >> a;
	suma+=a;
	if (a%2==1) {par=!par; if(a<b) b=a;}	
	}
if(!par) suma-=b;
if(suma!=0) cout << suma;
else cout << "NIESTETY";
return 0;
}