static void Main(string[] args)
{
BST obj = new BST();
for (int i = 0; i < 100; ++i)
{
obj.Insert(i);
Console.WriteLine();
Console.WriteLine();
obj.print_root();
}
obj.print();
obj.testIntegrity();
for (int i = 0; i < 7; ++i)
{
obj.print_at_height(i);
Console.WriteLine();
Console.WriteLine();
}
Console.ReadLine();
}
