1  x                    =   1

                              11  x  11                =   121

                           111  x  111               =   12321

                        

                         1111  x  1111             =   1234321

                      

                       11111  x  11111           =   123454321

                    

                     111111  x  111111         =   12345654321

                  

                   1111111  x  1111111       =   1234567654321

                

                 11111111  x  11111111       12345678765432

              

               111111111  x  111111111   =   12345678987654321