B3311331313231311331322331333132313132313331323223313231333132313221123221   >>    B331133131323131133132233133313231313231333132322331323133313231322112322   <<    B3311331313231311331322331333132313132313331323223313231333132313221123223   >>      B3311331313231311331322331333132313132313331323223313231333132313221123222   >>