B33113313132313113313223313331323132313331313232233131333131333131133132223311   >>    B3311331313231311331322331333132313231333131323223313133313133313113313222331   <<    B33113313132313113313223313331323132313331313232233131333131333131133132223313   >>      B33113313132313113313223313331323132313331313232233131333131333131133132223312   >>