from os import system
from time import sleep

try:
    file = open("READ_THIS.txt", "r")
    __doc__ = file.read()
    file.close()
    del(file)
except:
    __doc__ = "__doc__ file availble at http://dbhome.dk/learningtoprogram"

min = raw_input("How many minutes til shutdown? ")

try:
    min = int(min)

    sec = min * 60
    
    for i in range(-min, 0):
        sleep(60)
        print "\n" * 10
        print i
        print "\n" * 10
    #sleep(sec)
    system("shutdown -s")
except:
    print "Please enter real numbers next time"
    print "              Goodbye              "