deb http://repos.uo.edu.cu/debian/ stretch main non-free contrib
deb http://repos.uo.edu.cu/debian/ stretch-updates main non-free contrib
deb http://repos.uo.edu.cu/debian-security/ stretch/updates main non-free contrib
### Opcionales ###
deb http://repos.uo.edu.cu/debian/ stretch-backports main non-free contrib
deb http://repos.uo.edu.cu/debian/ stretch-proposed-updates main non-free contrib