B3311331313231311331322331333132313331323331211113313331312323223311   >>    B331133131323131133132233133313231333132333121111331333131232322331   <<    B3311331313231311331322331333132313331323331211113313331312323223313   >>      B3311331313231311331322331333132313331323331211113313331312323223312   >>