B3311331313231311331322331333132333132322331133132322331323132313231311211   >>    B331133131323131133132233133313233313232233113313232233132313231323131121   <<    B3311331313231311331322331333132333132322331133132322331323132313231311213   >>      B3311331313231311331322331333132333132322331133132322331323132313231311212   >>