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--- a
+++ b/mit-bih-ecg-compression-test-database-1.0.0/12531_03.hea
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+12531_03 2 250 5120
+12531_03.dat 212 400 12 0 102 -28607 0 ECG
+12531_03.dat 212 400 12 0 82 -30332 0 ECG