B3311331313231311331322331333132313331323133313233313232233132311323131   >>    B331133131323131133132233133313231333132313331323331323223313231132313   <<    B3311331313231311331322331333132313331323133313233313232233132311323133   >>      B3311331313231311331322331333132313331323133313233313232233132311323132   >>