diff --git a/real_net/ma2c/price_data/reverse_line.py b/real_net/ma2c/price_data/reverse_line.py
new file mode 100644
index 0000000..ed20cd6
--- /dev/null
+++ b/real_net/ma2c/price_data/reverse_line.py
@@ -0,0 +1,7 @@
+import csv
+
+with open("EURUSD_threemonths.csv") as fr, open("reverse_EURUSD_threemonths.csv", "w", newline="") as fw:
+    cr = csv.reader(fr, delimiter=",")
+    cw = csv.writer(fw, delimiter=",")
+    cw.writerow(next(cr))  # write title as-is
+    cw.writerows(reversed(list(cr)))