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#include<iostream>
using namespace std;
int main()
{
ios_base::sync_with_stdio(0);
int n;
cin>>n;
int a;
int min=100000;
int sum=0;
for(int i=0;i<n;i++)
{
	cin>>a;
	sum+=a;
	if((a%2==1)&&(a<min))
	{
		min=a;
	}
}
if(sum%2==1)
{
	sum-=min;
}
if(sum!=0)
{
cout<<sum;
}
else
{
	cout<<"NIESTETY";
}
return 0;
}