B3311331313231311331322331333132333132322331133132322331323131121   >>    B331133131323131133132233133313233313232233113313232233132313112   <<    B3311331313231311331322331333132333132322331133132322331323131123   >>      B3311331313231311331322331333132333132322331133132322331323131122   >>