using System;
using System.Linq;
public class Test
{
public static void Main()
{
string str = "12345MLOL68";
int[] indices = {5, 6, 9};
Console.WriteLine(str);
indices = indices.OrderByDescending(x => x).ToArray();
foreach (var index in indices)
{
str = str.Insert(index, ",");
}
Console.WriteLine(str);
}
}
dXNpbmcgU3lzdGVtOwp1c2luZyBTeXN0ZW0uTGlucTsKcHVibGljIGNsYXNzIFRlc3QKewoJcHVibGljIHN0YXRpYyB2b2lkIE1haW4oKQoJewoJCXN0cmluZyBzdHIgPSAiMTIzNDVNTE9MNjgiOwoJCWludFtdIGluZGljZXMgPSB7NSwgNiwgOX07CgkJQ29uc29sZS5Xcml0ZUxpbmUoc3RyKTsKCQlpbmRpY2VzID0gaW5kaWNlcy5PcmRlckJ5RGVzY2VuZGluZyh4ID0+IHgpLlRvQXJyYXkoKTsKCQkKCQlmb3JlYWNoICh2YXIgaW5kZXggaW4gaW5kaWNlcykKCQl7CgkJICAgIHN0ciA9IHN0ci5JbnNlcnQoaW5kZXgsICIsIik7CgkJfQoJCUNvbnNvbGUuV3JpdGVMaW5lKHN0cik7Cgl9Cn0=