
def main():
    S = input()
    print("x"*len(S))

if __name__ == "__main__":
    main() def main():
    S = input()
    print("x"*len(S)) main S = input() S input() input print("x"*len(S)) print "x"*len(S) "x" len(S) len S if __name__ == "__main__":
    main() __name__ == "__main__" __name__ "__main__" main() main def main():
    S = input()
    print("x"*len(S)) def main():
    S = input()
    print("x"*len(S)) main

def main():
    S = input()
    print("x"*len(S))

if __name__ == "__main__":
    main()