Switch to side-by-side view

--- a
+++ b/paf-prediction-challenge-database-1.0.0/p31c.hea
@@ -0,0 +1,3 @@
+p31c 2 128 38400
+p31c.dat 16 200/mV 12 0 0 -20226 0 ECG0
+p31c.dat 16 200/mV 12 0 -26 14340 0 ECG1