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#include<iostream>
#include<cstdio>

using namespace std;

int n, x, mini, sum;

int main()
{
	ios_base::sync_with_stdio( 0 );
	cin>>n;
	mini = 1000000009;
	for( int a = 1; a <= n; a++ )
	{
		cin>>x;
		if( x%2 )mini = min( mini, x );
		sum += x;
	}
	if( sum%2 )sum -= mini;
	if( sum )cout<<sum;
	else cout<<"NIESTETY";
	
	return 0;
}