((6-(-3))-12)*-8
(6-(-3+12))*-8
((6-12)-(-3))*-8
(6-(12+(-3)))*-8
6*((12/(-3))-(-8))
((12/(-3))-(-8))*6
-8*((6-(-3))-12)
-8*(6-(-3+12))
-8*((6-12)-(-3))
-8*(6-(12+(-3)))