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#include<iostream>

using namespace std;

int main ( )
{
	int n;
	cin>>n;
	long long sum = 0;
	int sw = 1000000;
	for ( int i = 0; i < n; i++ )
	{
		int a;
		cin>>a;
		if ( a%2 == 1 )
		{
			sw = min( sw, a );
		}
		sum += a;
	}
	
	if ( sum - sw == 0 )
	{
		cout<<"NIESTETY";
	}
	else if ( sum % 2 == 0 )
	{
		cout<<sum;
	}
	else
	{
		cout<< ( sum - sw );
	}
	




	return 0;
}