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#include <iostream>
using namespace std;

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