1 files changed, 9 insertions, 1 deletions
diff --git a/bench/stats.py b/bench/stats.py
index 3298099..c244b41 100644
--- a/bench/stats.py
+++ b/bench/stats.py
@@ -3,7 +3,15 @@
 import sys
 import statistics
 
-values = [ float(x) for x in sys.stdin.readlines()]
+def pairs(l, n):
+        return zip(*[l[i::n] for i in range(n)])
+
+# data comes in pairs:
+#    n - time for running the program with no input
+#    m - time for running it with the benchmark input
+# we measure (m - n)
+
+values = [ float(y) - float(x) for (x,y) in pairs(sys.stdin.readlines(),2)]
 
 print("mean = %.4f, median = %.4f, stdev = %.4f" %
     (statistics.mean(values), statistics.median(values),