stuck, 163 bytes

Result

WA

Duration

508ms

Code [DL]

ssss["x:map(int,x.split())"mT"x:[x[i]-x[3] for i in range(3)]"mT]u]u]u][["x:(x[1]*(x[5]*x[6]-x[3]*x[8])+x[2]*(x[3]*x[7]-x[4]*x[6])+x[0]*(x[4]*x[8]-x[5]*x[7]))/6"m]

stdin

85 68 01
67 19 06
91 72 74
17 10 15

stdout

-28292

stderr

strace