ruby, 85 bytes

Result

WA

Duration

530ms

Code [DL]

x=[]
for n in 0..3
  x[n]= gets.split.map(&:to_i).push(1)
end
p -Matrix.rows(x).det/6

stdin

36 46 63
68 88 71
92 27 47
03 90 24

stdout

stderr

/volume/CODE:5:in `<main>': uninitialized constant Matrix (NameError)

strace