B3311331313231311331322331333132313132313331323223313231333132322233231   >>    B331133131323131133132233133313231313231333132322331323133313232223323   <<    B3311331313231311331322331333132313132313331323223313231333132322233233   >>      B3311331313231311331322331333132313132313331323223313231333132322233232   >>