#!/usr/bin/env python

import sys
from struct import pack

if len(sys.argv) > 2:
	destination = open(sys.argv[2],'w')
else:
	destination = sys.stdout

with open(sys.argv[1],'r') as record:
	connect = record.readline()
	for line in record.readlines():
		split = line.rstrip().split()
		format = '!' +'H'*len(split)
		destination.write(pack(format,*[int(_,16) for _ in split]))

destination.close()
