! Copyright (c) 2008 Eric Mertens.
! See http://factorcode.org/license.txt for BSD license.
-USING: arrays assocs kernel math math.ranges sequences project-euler.common ;
+USING: arrays assocs kernel math ranges sequences project-euler.common ;
IN: project-euler.164
! http://projecteuler.net/index.php?section=problems&id=164