by@kcz146
WA
478ms
print(system2("a=(`cat`) for z in {0..8};{ $[a[z]-=a[9+z%3],s+=z/6*a[z]*(a[p=3+(z+1)%3]*a[q=(z+2)%3]-a[q+3]*a[p-3])/6] } echo $s"))
67 47 14 15 88 94 08 79 53 34 15 67
sh: 1: Syntax error: "(" unexpected