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#include <cstdio>
#include <iostream>

int main()
{
  int n;
  const int no = 1000000;
  int min = no;
  int s = 0;
  std::cin >> n;
  for(int i=0; i<n; i++)
  {
    int a;
    std::cin >> a;
    s += a;
    if(a % 2 == 1 && a < min)
      min = a;
  }

  if(s % 2 == 1)
  {
    if(min != no && n != 1)
      std::cout << s - min;
    else
      std::cout << "NIESTETY";
  }
  else
    std::cout << s;
  std::cout << std::endl;
  return 0;
}