#!/usr/bin/env python

from time import sleep
from getopt import getopt
import sys, fileinput

optlist, files = getopt(sys.argv[1:],'t:')
time = 0.5

for option, value in optlist:
    if option == "-t":
        time = float(value)

for line in fileinput.input():
    print line[:-1]
    sleep(time)