static void Main(string[] args)
{
PureFactory factory = new PureFactory();
ATerm t = factory.parse("f(g(1,h(2,3)),i(4,5),j(6,k(7,[8,9])))");
ATermLeavesCounter v = new ATermLeavesCounter();
TopDown td = new TopDown(v);
td.visit(t);
Console.Out.WriteLine(v.Count);
}
static void Main(string[] args)
{
PureFactory factory = new PureFactory();
ATerm t = factory.parse("f(g(1,h(2,3)),i(4,5),j(6,k(7,[8,9])))");
ATermLeavesCounter v = new ATermLeavesCounter();
TopDown td = new TopDown(v);
td.visit(t);
Console.Out.WriteLine(v.Count);
}