B3311331313231311331322331333132322331323331133132313232223131121   >>    B331133131323131133132233133313232233132333113313231323222313112   <<    B3311331313231311331322331333132322331323331133132313232223131123   >>      B3311331313231311331322331333132322331323331133132313232223131122   >>