B3311331313231311331322331333132333132322131133133313231323132313223321   >>    B331133131323131133132233133313233313232213113313331323132313231322332   <<    B3311331313231311331322331333132333132322131133133313231323132313223323   >>      B3311331313231311331322331333132333132322131133133313231323132313223322   >>