public bool Proccess(string atom, AbstractTreeItem seed, out AbstractTreeItem item)
 {
     if (atom.StartsWith("ÅÑËÈ"))
     {
         item = new TreeItemCond();
         return true;
     }
     else
     {
         item = null;
         return false;
     }
 }
        public bool Proccess(string atom, AbstractTreeItem seed, out AbstractTreeItem item)
        {
            if (atom.StartsWith("ТО"))
            {
                item = new TreeItemCond();
                if (seed.Type == TreeItemType.Если)
                {

                }
                else
                {
                    seed.Error = true;
                    seed.ErrorCode = ErrorCodes.TP_Если_1;
                }
                return true;
            }
            else
            {
                item = null;
                return false;
            }
        }