Oct 2021                                                                                                                              Nov 2021                                                                                                                     Dec 2021                                                                                                                            
                 40                          41                          42                          43                          44                          45                          46                          47                          48                          49                          50                          51                          52                                        
                                                                                                                                                                                                                                                                                                                                                                                                           
                                          Test prototype                                                                                                                                                                                                                                                                                                                                                   
                                              Prototype completed                                                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                                                                                                                           
                                                                                          Setup assembly line                                                                                                                                                                                                                                                                                              
                                                                                                                                                                                                                                                                                                                                                                                                           
                                                                                                                                                                                                                                                                                                                                                                                      Last days of the year
    Oct 2021                                                                                                                              Nov 2021                                                                                                                     Dec 2021