--- a
+++ b/mit-bih-ecg-compression-test-database-1.0.0/12531_04.hea-
@@ -0,0 +1,3 @@
+12531_04 2 250 5120
+12531_04.dat 212 400 12 0 69 -11976 0 ECG signal 0
+12531_04.dat 212 400 12 0 84 10555 0 ECG signal 1