csharp, 290 bytes

Result

WA

Duration

570ms

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();int s=0,1=0;for(int z=8;z-->0;)a[z%9]-=a[9+z%3],s+=a[z%3]*=a[p=3+(z+1)%3]*a[q=6+(z+2)%3]-a[q-3]*a[p+3];Console.Write(s/6);}}

stdin

45 10 02
23 32 10
30 44 93
98 04 36

stdout

Compilation failed: 3 error(s), 0 warnings

stderr

/tmp/code.cs(1,171): error CS0128: A local variable named `s' is already defined in this scope
/tmp/code.cs(1,174): error CS1001: Unexpected symbol `1', expecting identifier
/tmp/code.cs(1,213): error CS1525: Unexpected symbol `,', expecting `;' or `}'
Cannot open assembly '/tmp/code.exe': No such file or directory.
rm: can't remove '/tmp/code.exe': No such file or directory

strace