for (int i = 0; i < myBlocks.Count - 2; i++)
{
    string[] tokens = myBlocks[i].GetBlock();
    foreach (string token in tokens)
    {
        save.Add(token);
    }
    save[save.Count - 1] += ",";
}

string[] tokns = myBlocks[myBlocks.Count - 1].GetBlock();
foreach (string token in tokns)
{
    save.Add(token);
}
save.Add("}");