B3311331313231311331322331333132313132313331323223313231322312112321   >>    B331133131323131133132233133313231313231333132322331323132231211232   <<    B3311331313231311331322331333132313132313331323223313231322312112323   >>      B3311331313231311331322331333132313132313331323223313231322312112322   >>