B3311331313231311331322331333132313331322331323133313331322232132322231   >>    B331133131323131133132233133313231333132233132313331333132223213232223   <<    B3311331313231311331322331333132313331322331323133313331322232132322233   >>      B3311331313231311331322331333132313331322331323133313331322232132322232   >>