--- a
+++ b/mit-bih-noise-stress-test-database-1.0.0/119e18.hea
@@ -0,0 +1,4 @@
+119e18 2 360 650000
+119e18.dat 212 200(1024) 11 0 -199 -20527 0 MLII
+119e18.dat 212 200(1024) 11 0 -94 25514 0 V1
+# Created by `nst' from records 119 and em (SNR = 18 dB)