B3311331313231311331322331333132313331322331323133313311211331322123331   >>    B331133131323131133132233133313231333132233132313331331121133132212333   <<    B3311331313231311331322331333132313331322331323133313311211331322123333   >>      B3311331313231311331322331333132313331322331323133313311211331322123332   >>