B3311331313231311331322331333132313132313331323223313331323323132313211   >>    B331133131323131133132233133313231313231333132322331333132332313231321   <<    B3311331313231311331322331333132313132313331323223313331323323132313213   >>      B3311331313231311331322331333132313132313331323223313331323323132313212   >>