B3311331313231311331322331333132313132313331323223313223311232311   >>    B331133131323131133132233133313231313231333132322331322331123231   <<    B3311331313231311331322331333132313132313331323223313223311232313   >>      B3311331313231311331322331333132313132313331323223313223311232312   >>