using System;

using System.Collections.Generic;

public class Program

{

    public class Data

    {

        public int FolderId;

        public string Name;

        public int? ParentId;

        public int depth;

        public string path;

    }

    public static void Main()

    {

        var dataList = new List<Data>()

        {

            new Data(){ FolderId = 1, Name = "A", ParentId = null, depth = 0, path = @"1" },

            new Data(){ FolderId = 2, Name = "B", ParentId = 1,    depth = 1, path = @"1/2" },

            new Data(){ FolderId = 4, Name = "D", ParentId = 1,    depth = 2, path = @"1/2/4" },

            new Data(){ FolderId = 5, Name = "E", ParentId = 2,    depth = 2, path = @"1/2/5" },

            new Data(){ FolderId = 6, Name = "F", ParentId = 2,    depth = 3, path = @"1/2/5/6" },

            new Data(){ FolderId = 7, Name = "G", ParentId = 5,    depth = 3, path = @"1/2/5/7" },

            new Data(){ FolderId = 3, Name = "C", ParentId = 5,    depth = 1, path = @"1/3" }

        };

        foreach (var i in dataList)

        {

            Console.WriteLine(i.Name.PadLeft(i.depth +1, '-'));

        }

    }

}