B3311331313231311331322331333132313331323131323223313233313231323221323223321   >>    B331133131323131133132233133313231333132313132322331323331323132322132322332   <<    B3311331313231311331322331333132313331323131323223313233313231323221323223323   >>      B3311331313231311331322331333132313331323131323223313233313231323221323223322   >>