B33113313132313113313223313331323132313233313331312111133133313223332211   >>    B3311331313231311331322331333132313231323331333131211113313331322333221   <<    B33113313132313113313223313331323132313233313331312111133133313223332213   >>      B33113313132313113313223313331323132313233313331312111133133313223332212   >>