by@yamayu832
WA
459ms
a=(`cat -`) for z in {0..8};{ t=$[a[z]-=a[9+z%3]] s=$[s+=z/6*a[z]*(a[p=3+(z+1)%3]*a[q=(z+2)%3]-a[q+3]*a[p-3])] } echo $[s/6]
33 45 08 91 02 60 91 47 24 90 79 98
0
/volume/CODE: line 4: 08: value too great for base (error token is "08")