B3311331313231311331322331333132313231323331311233132322331323221121   >>    B331133131323131133132233133313231323132333131123313232233132322112   <<    B3311331313231311331322331333132313231323331311233132322331323221123   >>      B3311331313231311331322331333132313231323331311233132322331323221122   >>