powershell, 185 bytes

Result

WA

Duration

1259ms

Code [DL]

$a =(Read-Host).Split()
$b =(Read-Host).Split()
$c =(Read-Host).Split()
$d =(Read-Host).Split()
foreach($i in 0..2){
$b[$i]-=$a[$i]
$c[$i]-=$a[$i]
$d[$i]-=$a[$i]
}
echo(($b[0]*$c[1])/6)

stdin

02 09 66
32 84 39
20 27 22
03 66 65

stdout

02 09 66
32 84 39
20 27 22
03 66 65
5.05050505050505E+34

stderr

strace