def solve():
    S = input()
    print('x'*len(S))

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

if __name__ == "__main__":
    solve()