csharp, 304 bytes

Result

WA

Duration

772ms

Code [DL]

using System;using System.Linq;class A{static void Main(){char[]c={' ','\n'};string s=Console.In.ReadToEnd();int[]a=s.Split(c).Take(12).Select(Int32.Parse).ToArray();for(int z=8;i-->0;){a[z]-=a[9+z%3];Console.Write((a[7]*(a[0]*a[5]-a[3]*a[2])+a[6]*(a[4]*a[2]-a[1]*a[5])+a[8]*(a[3]*a[1]-a[0]*a[4]))/6);}}}

stdin

32 94 80
48 60 54
61 92 97
47 05 73

stdout

Compilation failed: 1 error(s), 0 warnings

stderr

/tmp/code.cs(1,179): error CS0103: The name `i' does not exist in the current context
Cannot open assembly '/tmp/code.exe': No such file or directory.
rm: can't remove '/tmp/code.exe': No such file or directory

strace