import sys


def main():
    response = raw_input( "Do you want to see a trick? " )
    if response == "yes":
        F= open("data.txt", "r")
        oldInput = sys.stdin
        sys.stdin = F
        x = input()
        y = input()
        print "We just read %d and %d from a file!" % (x, y)
        sys.stdin = oldInput
        response = raw_input( "Wasn't that cool? " )
        print response

main()