# 
deb http://ftp.ru.debian.org/debian/ stretch main contrib non-free
deb-src http://ftp.ru.debian.org/debian/ stretch main contrib non-free

deb http://security.debian.org/ stretch/updates main contrib non-free
deb-src http://security.debian.org/ stretch/updates main contrib non-free

deb http://ftp.ru.debian.org/debian/ stretch-proposed-updates main contrib non-free
deb-src http://ftp.ru.debian.org/debian/ stretch-proposed-updates main contrib non-free

deb http://ftp.ru.debian.org/debian/ stretch-backports main contrib non-free
deb-src http://ftp.ru.debian.org/debian/ stretch-backports main contrib non-free

deb http://ftp.ru.debian.org/debian/ stretch-backports-sloppy main contrib non-free
deb-src http://ftp.ru.debian.org/debian/ stretch-backports-sloppy main contrib non-free