private static void ConvertChildrenSumCaller()
{
var node = GetTree();
var node1 = GetSumTree();
Console.WriteLine(Problems.ChildrenSumProperty(node));
Console.WriteLine(Problems.ChildrenSumProperty(node1));
Problems.ConvertChildrenSum(node);
Problems.ConvertChildrenSum(node1);
Console.WriteLine(Problems.ChildrenSumProperty(node));
Console.WriteLine(Problems.ChildrenSumProperty(node1));
}