--- a
+++ b/mit-bih-malignant-ventricular-ectopy-database-1.0.0/420.hea-
@@ -0,0 +1,3 @@
+420 2 250 525000
+420.dat 212 200 12 0 -8 -14368 0 record 420, signal 0
+420.dat 212 200 12 0 -60 -6019 0 record 420, signal 1