B3311331313231311331322331333132313331322132333133313232233131133131132311   >>    B331133131323131133132233133313231333132213233313331323223313113313113231   <<    B3311331313231311331322331333132313331322132333133313232233131133131132313   >>      B3311331313231311331322331333132313331322132333133313232233131133131132312   >>