deb http://http.us.debian.org/debian experimental main contrib non-free
deb-src http://http.us.debian.org/debian stable main contrib non-free
deb http://http.us.debian.org/debian unstable main contrib non-free
deb http://non-us.debian.org/debian-non-US stable/non-US main contrib non-free
deb http://security.debian.org stable/updates main contrib