#! /usr/bin/python

import os
import sys
from select import select

targets = [sys.stdout]
for filename in sys.argv[1:]:
	f = open(filename, "w")
	targets.append(f)

targetfds = []
for f in targets:
	targetfds.append(f.fileno())

src = sys.stdin.fileno()
while 1:
    (r, w, x) = select([src],[],[])
    str = os.read(src,1)
    if str == '':
        break

    for fd in targetfds:
        os.write(fd, str)

for f in targets:
	f.close()