by@kcz146
WA
496ms
a=(`cat`)
for z in {0..8};{
$[a[t=z]-=a[9+z%3],s+=z/6*a[z]*(a[++t%3+3]*a[q=++t%3]-a[q+3]*a[z%3])/6]
}
echo $s17 33 61 07 62 92 75 87 07 07 62 68
-1720
/volume/CODE: line 3: 0: command not found /volume/CODE: line 3: 0: command not found /volume/CODE: line 3: 0: command not found /volume/CODE: line 3: 0: command not found /volume/CODE: line 3: 0: command not found /volume/CODE: line 3: 0: command not found /volume/CODE: line 3: -2720: command not found /volume/CODE: line 3: -1720: command not found /volume/CODE: line 3: -1720: command not found