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#include <iostream>

using namespace std;
int n,m=1001,s=0,a;
int main()
{
cin>>n;
for(int i=0;i<n;i++)
{
cin>>a;s=s+a;if(a%2!=0&&m>a)m=a;	
}
if(s%2!=0)
{


if(s-m<=0)
cout<<"NIESTETY";
else
cout<<s-m;	
}else cout<<s;
return 0;
}