#include "oechem.h"
#include <iostream>

using namespace OESystem;
using namespace OEChem;
using namespace std;

void ListAtomicNumbers(OEMolBase &mol)
{
  OEIter<OEAtomBase> atom;
  OEAtomBase *aptr;

  for (atom=mol.GetAtoms(); atom; ++atom)
  {
    aptr = atom;
    cout << aptr->GetAtomicNum() << endl;
  }
}

int main() 
{
  OEMol mol;
  OEParseSmiles(mol, "c1ccccc1");
  ListAtomicNumbers(mol);
  return 0;
}