ubuntu@ubuntu-laptop:~/openwrt/atheros$ bc
bc 1.06
Copyright 1991-1994, 1997, 1998, 2000 Free Software Foundation, Inc.
This is free software with ABSOLUTELY NO WARRANTY.
For details type `warranty'. 
obase=16
ibase=16
0xA8730000 - 0xA87E0000
(standard_in) 3: parse error
(standard_in) 3: parse error
ubuntu@ubuntu-laptop:~/openwrt/atheros$