  _______________________________________________________  
 |                                                       | 
 |                                                       | 
 |                                                       | 
 |                                                       | 
 |                                                       | 
 |           |~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~|            | 
 |           |    |~~~~~~~~~~~~~~~~~~~~|    |            | 
 |           |    |                    |    |            | 
 |           |    |     __________     |    |            | 
 |           |    |____________________|    |            | 
 |           |______________________________|            | 
 |                                                       | 
 |                                                       | 
 |                                                       | 
 |                                                       | 
 |                                                       | 
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~||        ||~~~~~~~~~~~~  
                                 ||        ||              
                                 ||        ||              