B3311331313231311331322331333132313331322331323133313113313232223221   >>    B331133131323131133132233133313231333132233132313331311331323222322   <<    B3311331313231311331322331333132313331322331323133313113313232223223   >>      B3311331313231311331322331333132313331322331323133313113313232223222   >>