using System;

using System.Collections.Generic;

using System.Linq;

​

public class Program

{

    public static void Main()

    {

        string line = "Brands > Schlage > Door Hardware > Locks & Lock Parts > Cylindrical Locks > Levers";

        List<int> markers = new List<int>{2, 3, 4, 5};

        var value = SplitBreadCrumbOnIndex(markers, line);

        Console.WriteLine(value);

    }

​

    public static string SplitBreadCrumbOnIndex(List<int> markers, string input)

    {

        string output = "";

        foreach (var index in markers)

        {

            output += index == markers.Last() ? input.Split('>')[index] : input.Split('>')[index] + " > ";

        }

​

        return output;

    }

}