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#include <cstdlib>
#include <iostream>

using namespace std;

int main(int argc, char *argv[])
{
   int n, a;
   cin >> n;
   
   int suma = 0;
   int min = 1001;
   for(int i = 0; i < n; i++)
   {
      cin >> a;
      suma += a;
      if(a < min && a % 2 == 1)
         min = a;
   }
   
   if(suma % 2 == 1)
      suma -= min;
   
   if(suma == 0)
      cout << "NIESTETY";
   else
      cout << suma;
   
   return EXIT_SUCCESS;
}