$2.$ Create a festive lights display with $8$ light bulbs $($B$7-$B$0).$ When activated $($A$0=1),$

the appearance is of two balls bouncing off each other, as follows: $10000001,$

$01000010,00100100,00011000,00100100,01000010,10000001,$ repeat. Each

output configuration lasts for one second. Use bit$-$manipulation methods $($and$,$ or$,$ complement$)$

rather than numeric values. When deactivated, the display turns off all bulbs within $3$ seconds.