deb http://repos.uclv.edu.cu/ubuntu xenial  main restricted universe multiverse
deb http://repos.uclv.edu.cu/ubuntu xenial-updates  main restricted universe multiverse
deb http://repos.uclv.edu.cu/ubuntu xenial-security  main restricted universe multiverse
deb http://repos.uclv.edu.cu/ubuntu xenial-backports  main restricted universe multiverse
deb http://repos.uclv.edu.cu/ubuntu xenial-proposed  main restricted universe multiverse