M         M                         H                   M                                                                                       
                                M M       M                         M                   M                                                                                        
                                M   M     M     M M       M M M           M M M         M     M M     M     M     H M M       M M M M     M M                                   
                                M   M     M   M     M   M       M       M               M   M     M   M     M     M     M     M M M     M     M                                 
                                M     M   M     M M M   M       M         M M           M     M M M   M     H     M     M     M         M M M M                                 
                                M       M M   M     M   H       M             M         M   M     M   M     M     M     M     M M M     M                                       
                                M         M     M M M     M M M         M M M           M     M M M     M M M     M     M     M     M     M M M                                 
                                                                                                                                M M