B33113313132313113313223313331323132313331313232233131333133313231333133332211   >>    B3311331313231311331322331333132313231333131323223313133313331323133313333221   <<    B33113313132313113313223313331323132313331313232233131333133313231333133332213   >>      B33113313132313113313223313331323132313331313232233131333133313231333133332212   >>