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#include <iostream>
using namespace std;

int main()
{
 unsigned int count;
 unsigned int suma = 0;
 unsigned int minOdd = 0;
 unsigned int next;
 cin >> count;
 for(unsigned int i=0; i<count; ++i)
 {
  cin >> next;
  suma += next;
  if(next&1)
  {
   if((minOdd==0) or (minOdd>next))
   {
    minOdd = next;
   }
  }
 }
 if(suma&1)
 {
 	suma -= minOdd;
 }
 if(suma>0)	
  cout << suma;
 else
  cout << "NIESTETY"; 
}