B3311331313231311331322331333132313231323331333131123313331323223313113322231   >>    B331133131323131133132233133313231323132333133313112331333132322331311332223   <<    B3311331313231311331322331333132313231323331333131123313331323223313113322233   >>      B3311331313231311331322331333132313231323331333131123313331323223313113322232   >>