B33113313132313113313223313331323221211111211111333132313232233121   >>    B3311331313231311331322331333132322121111121111133313231323223312   <<    B33113313132313113313223313331323221211111211111333132313232233123   >>      B33113313132313113313223313331323221211111211111333132313232233122   >>