B33113313132313113313223313331323132313233313331311331333132323211312121   >>    B3311331313231311331322331333132313231323331333131133133313232321131212   <<    B33113313132313113313223313331323132313233313331311331333132323211312123   >>      B33113313132313113313223313331323132313233313331311331333132323211312122   >>