cmd, 258 bytes

Result

AC

Duration

2537ms

Code [DL]

set/p q=
for /f "tokens=1-12 delims=%q:~8,1% " %%a in ("%q%") do (
set/aa=%%d-%%a
set/ab=%%e-%%b
set/ac=%%f-%%c
set/ad=%%g-%%a
set/ae=%%h-%%b
set/af=%%i-%%c
set/ag=%%j-%%a
set/ah=%%k-%%b
set/ai=%%l-%%c)
set/av=(a*e*i+b*f*g+c*d*h-a*h*f-b*i*d-c*g*e)/6
echo %v%

stdin

42 56 64
90 65 24
68 48 06
24 71 02

stdout

13272

stderr

wine: created the configuration directory '/root/.wine'
Wine cannot find the FreeType font library.  To enable Wine to
use TrueType fonts please install a version of FreeType greater than
or equal to 2.0.5.
http://www.freetype.org
Wine cannot find the FreeType font library.  To enable Wine to
use TrueType fonts please install a version of FreeType greater than
or equal to 2.0.5.
http://www.freetype.org
Wine cannot find the FreeType font library.  To enable Wine to
use TrueType fonts please install a version of FreeType greater than
or equal to 2.0.5.
http://www.freetype.org
Wine cannot find the FreeType font library.  To enable Wine to
use TrueType fonts please install a version of FreeType greater than
or equal to 2.0.5.
http://www.freetype.org
err:ole:marshal_object couldn't get IPSFactory buffer for interface {00000131-0000-0000-c000-000000000046}
err:ole:marshal_object couldn't get IPSFactory buffer for interface {6d5140c1-7436-11ce-8034-00aa006009fa}
err:ole:StdMarshalImpl_MarshalInterface Failed to create ifstub, hres=0x80004002
err:ole:CoMarshalInterface Failed to marshal the interface {6d5140c1-7436-11ce-8034-00aa006009fa}, 80004002
err:ole:get_local_server_stream Failed: 80004002
err:winediag:nulldrv_CreateWindow Application tried to create a window, but no driver could be loaded.
err:winediag:nulldrv_CreateWindow Make sure that your X server is running and that $DISPLAY is set correctly.
err:ole:apartment_createwindowifneeded CreateWindow failed with error 0
err:ole:apartment_createwindowifneeded CreateWindow failed with error 0
err:ole:marshal_object couldn't get IPSFactory buffer for interface {00000131-0000-0000-c000-000000000046}
err:winediag:nulldrv_CreateWindow Application tried to create a window, but no driver could be loaded.
err:winediag:nulldrv_CreateWindow Make sure that your X server is running and that $DISPLAY is set correctly.
err:ole:apartment_createwindowifneeded CreateWindow failed with error 14007
err:ole:StdMarshalImpl_MarshalInterface Failed to create ifstub, hres=0x800736b7
err:ole:CoMarshalInterface Failed to marshal the interface {6d5140c1-7436-11ce-8034-00aa006009fa}, 800736b7
err:ole:get_local_server_stream Failed: 800736b7
err:winediag:nulldrv_CreateWindow Application tried to create a window, but no driver could be loaded.
err:winediag:nulldrv_CreateWindow Make sure that your X server is running and that $DISPLAY is set correctly.
Wine cannot find the FreeType font library.  To enable Wine to
use TrueType fonts please install a version of FreeType greater than
or equal to 2.0.5.
http://www.freetype.org
err:winediag:nulldrv_CreateWindow Application tried to create a window, but no driver could be loaded.
err:winediag:nulldrv_CreateWindow Make sure that your X server is running and that $DISPLAY is set correctly.
err:module:import_dll Loading library urlmon.dll (which is needed by L"C:\\windows\\system32\\mshtml.dll") failed (error c000007b).
Wine cannot find the FreeType font library.  To enable Wine to
use TrueType fonts please install a version of FreeType greater than
or equal to 2.0.5.
http://www.freetype.org
wine: configuration in '/root/.wine' has been updated.
Wine cannot find the FreeType font library.  To enable Wine to
use TrueType fonts please install a version of FreeType greater than
or equal to 2.0.5.
http://www.freetype.org

strace