D12121323331322331311132313132313331313232233132323132313233313113311231   >>    D1212132333132233131113231313231333131323223313232313231323331311331123   <<    D12121323331322331311132313132313331313232233132323132313233313113311233   >>      D12121323331322331311132313132313331313232233132323132313233313113311232   >>