B3311331313231311331322331333132333133313223331211331333131111211   >>    B331133131323131133132233133313233313331322333121133133313111121   <<    B3311331313231311331322331333132333133313223331211331333131111213   >>      B3311331313231311331322331333132333133313223331211331333131111212   >>