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#include<iostream>
#include<cstdlib>
#include <cmath>
using namespace std;












main()
{ios_base::sync_with_stdio(0);
long long suma=0,n,mini=10000000,a;

cin>>n;
for(long long k=1;k<=n;k++)
{
cin>>a;	
	
suma+=a;
if(a%2==1)
{
if(a<mini)
mini=a;		
}
	
	
	
}

if(suma%2==1)
{
if(mini==10000000)
cout<<"NIESTETY";
else
{
if(suma-mini==0)
cout<<"NIESTETY";
else	
cout<<suma-mini;	
}
	
}
else
cout<<suma;


return 0;
}