B3311331313231311331322331333132333131333132233133313232233132313331323221331   >>    B331133131323131133132233133313233313133313223313331323223313231333132322133   <<    B3311331313231311331322331333132333131333132233133313232233132313331323221333   >>      B3311331313231311331322331333132333131333132233133313232233132313331323221332   >>