((b[0] + b[1] + b[2] + b[5] + b[6]) -
(a[0] + a[1] + a[2] + a[5] + a[6])) /
((b[0] + b[1] + b[2] + b[3] + b[4] + b[5] + b[6]) -
(a[0] + a[1] + a[2] + a[3] + a[4] + a[5] + a[6]))));
}
#elif defined(__OpenBSD__)
((b[0] + b[1] + b[2] + b[5] + b[6]) -
(a[0] + a[1] + a[2] + a[5] + a[6])) /
((b[0] + b[1] + b[2] + b[3] + b[4] + b[5] + b[6]) -
(a[0] + a[1] + a[2] + a[3] + a[4] + a[5] + a[6]))));
}
#elif defined(__OpenBSD__)