#!/usr/bin/env python3
def main():
    print('x' * len(input()))


if __name__ == '__main__':
    main() def main():
    print('x' * len(input())) main print('x' * len(input())) print 'x' * len(input()) 'x' len(input()) len input() input if __name__ == '__main__':
    main() __name__ == '__main__' __name__ '__main__' main() main def main():
    print('x' * len(input())) def main():
    print('x' * len(input())) main
#!/usr/bin/env python3
def main():
    print('x' * len(input()))


if __name__ == '__main__':
    main()
