rprogn, 303 bytes

Result

WA

Duration

492ms

Code [DL]

read "%d+" ↔ pop "j" = pop "k" = pop "l" = [
read "%d+" ↔ pop j - "a" = pop k - "b" = pop l - "c" = [
read "%d+" ↔ pop j - "d" = pop k - "e" = pop l - "f" = [
read "%d+" ↔ pop j - "g" = pop k - "h" = pop l - "i" = [
  I
a e i * * b f g * * c d h * * + + a h f * * b i d * * c g e * * + + - 6 //

stdin

74 77 04
96 42 47
79 14 81
06 03 02

stdout

CURRENT REG: 	(  )
CUSTOM MEMORY:
b	=	-35.0
a	=	43.0
l	=	74
k	=	77
h	=	-74.0
g	=	-2.0
j	=	04
i	=	-68.0
d	=	77.0
c	=	22.0
f	=	5.0
e	=	-63.0
-18486

stderr

strace