#!/usr/bin/python3

import sys

if len(sys.argv) != 3:
	print("Usage: %s baseline.csv result.csv" % sys.argv[0], file=sys.stderr)
	exit(1)

with open(sys.argv[1]) as baseline, open(sys.argv[2]) as result:
	contentB = baseline.read().splitlines()
	contentR = result  .read().splitlines()
	headerB = contentB[0].split(',')
	headerR = contentR[0].split(',')
	valuesB = [float(v) for v in contentB[1].split(',')]
	valuesR = [float(v) for v in contentR[1].split(',')]

	dataB = {label: value for label, value in zip(headerB, valuesB)}
	dataR = {label: value for label, value in zip(headerR, valuesR)}

	if set(dataB) - set(dataR) or set(dataR) - set(dataB):
		print("Error: baseline and result differ in number of values", file=sys.stderr)
		exit(2)

	out = {label : "{0:.3f}".format(num / dataB[label]) for label, num in dataR.items()}

	print(','.join( out.keys() ))
	print(','.join( out.values() ))