|  | --  Copyright 2007-2024 Free Software Foundation, Inc. | 
|  | -- | 
|  | --  This program is free software; you can redistribute it and/or modify | 
|  | --  it under the terms of the GNU General Public License as published by | 
|  | --  the Free Software Foundation; either version 3 of the License, or | 
|  | --  (at your option) any later version. | 
|  | -- | 
|  | --  This program is distributed in the hope that it will be useful, | 
|  | --  but WITHOUT ANY WARRANTY; without even the implied warranty of | 
|  | --  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | 
|  | --  GNU General Public License for more details. | 
|  | -- | 
|  | --  You should have received a copy of the GNU General Public License | 
|  | --  along with this program.  If not, see <http://www.gnu.org/licenses/>. | 
|  |  | 
|  | procedure Hello is | 
|  |  | 
|  | procedure First is | 
|  | begin | 
|  | null; | 
|  | end First; | 
|  |  | 
|  | procedure Second is | 
|  | begin | 
|  | First; | 
|  | end Second; | 
|  |  | 
|  | procedure Third is | 
|  | begin | 
|  | Second; | 
|  | end Third; | 
|  |  | 
|  | begin | 
|  | declare | 
|  | procedure Fourth is | 
|  | begin | 
|  | Third; | 
|  | declare | 
|  | procedure Fifth is | 
|  | begin | 
|  | Second; | 
|  | end Fifth; | 
|  | begin | 
|  | Fifth; | 
|  | end; | 
|  | end Fourth; | 
|  | begin | 
|  | Fourth; | 
|  | end; | 
|  | end Hello; |