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#include <iostream>
using namespace std;

int main()
{
	ios_base::sync_with_stdio(0);
	int n,x,sum,min;
	sum=0;
	min=2001;
	cin>>n;
	for(int i=0;i<n;i++)
	{
		cin>>x;
		sum+=x;
		if(x%2==1)
			min=(x<min?x:min);
	}
	if(sum%2==1)sum-=min;
	if(sum==0)
		cout<<"NIESTETY";
	else
		cout<<sum;
}