B3311331313231311331322331333132313331322331323133313311232313132313132231   >>    B331133131323131133132233133313231333132233132313331331123231313231313223   <<    B3311331313231311331322331333132313331322331323133313311232313132313132233   >>      B3311331313231311331322331333132313331322331323133313311232313132313132232   >>