lua, 150 bytes

Result

AC

Duration

506ms

Code [DL]

s=0
a={}for k=12,1,-1 do
a[k]=io.read("*n")-(k<=9 and a[10+~-k%3]or 0);q=-~k%3
s=s+(k<4 and a[k]*(a[4+k%3]*a[7+q]-a[7+k%3]*a[4+q])or 0)end
print(s//6)

stdin

46 44 30
64 98 81
15 05 26
82 70 66

stdout

9931

stderr

strace