a b/mit-bih-ecg-compression-test-database-1.0.0/12247_02.hea- 

  1
  
12247_02 2 250 5120





  
  

  2
  
12247_02.dat 212 400 12 0 745 -13062 0 ECG signal 0





  
  

  3
  
12247_02.dat 212 400 12 0 39 -16147 0 ECG signal 1