print("Criterion: 20 < Area < 60, Nb = ", len(aGroup3.GetListOfID()))
# Please note that also there is IntersectGroups() method which works with two groups only
print("Criterion: 20 < Area < 60, Nb = ", len(aGroup3.GetListOfID()))
# Please note that also there is IntersectGroups() method which works with two groups only