 
                             
                             
                             
                             
                             
                        | 2 | 6 | 2 | 4 | 
| 3 | 9 | 1 | 8 | 
| 1 | 5 | 8 | 1 | 
| 2 | 6 | 2 | 4 | 
| 0 | 0 | 0 | 5 | 
| 9 | 3 | 0 | 1 | 
| 7 | 0 | 8 | 1 | 
| 0 | 0 | 0 | 5 | 
 
                         
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                         
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                         
                                 
                                 
                                 
                                 
                                 
                         
                                 
                         
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                         
                                 
                                 
                                