*  
=  

   0
*   
=   

    
*  0
=   

   1
*   
=   

    
*  1
=   

    0
*   0
=    

    1
*   0
=   0

    0
*   1
=    

    1
*   1
=   1

     1
*   11
=   11

     10
*    11
=  0110

     11
*    11
=  1001

       0011
*      0011
=      1001

     111
*     11
=  10101

       111
*     1101
=  1011011

        1010
*      11111
=  100110110