B3311331313231311331322331333132333133313231332113313331333132313223313111211   >>    B331133131323131133132233133313233313331323133211331333133313231322331311121   <<    B3311331313231311331322331333132333133313231332113313331333132313223313111213   >>      B3311331313231311331322331333132333133313231332113313331333132313223313111212   >>