<wob_jonas> perl -eopen$i,"<",($f="wisdom/aristotle");$_=<$i>; s/(alphabet).*/$1 doesn\'t have the letter C.\\n/ or die; open$o,">",$f; print$o $_ or die; print substr$_,300;

The absolute value of a number, also known as its cosign, is its distance from zero regardless of direction. It shouldn't be negative, but Sgeo is trying to break maths.