B3311331313231311331322331333131133132333132333133313223313231323223331211231   >>    B331133131323131133132233133313113313233313233313331322331323132322333121123   <<    B3311331313231311331322331333131133132333132333133313223313231323223331211233   >>      B3311331313231311331322331333131133132333132333133313223313231323223331211232   >>