

def read_int():
    return int(input().strip())


def read_ints():
    return list(map(int, input().strip().split(' ')))


def solve():
    return ''.join(['x']*len(input()))


if __name__ == '__main__':
    print(solve()) def read_int():
    return int(input().strip()) read_int return int(input().strip()) int(input().strip()) int input().strip() ().strip () input strip def read_ints():
    return list(map(int, input().strip().split(' '))) read_ints return list(map(int, input().strip().split(' '))) list(map(int, input().strip().split(' '))) list map(int, input().strip().split(' ')) map int input().strip().split(' ') ().strip().split ().strip() ().strip () input strip split ' ' def solve():
    return ''.join(['x']*len(input())) solve return ''.join(['x']*len(input())) ''.join(['x']*len(input())) ''.join '' join ['x']*len(input()) ['x'] 'x' len(input()) len input() input if __name__ == '__main__':
    print(solve()) __name__ == '__main__' __name__ '__main__' print(solve()) print solve() solve def read_int():
    return int(input().strip()) def read_int():
    return int(input().strip()) read_int def read_ints():
    return list(map(int, input().strip().split(' '))) def read_ints():
    return list(map(int, input().strip().split(' '))) read_ints def solve():
    return ''.join(['x']*len(input())) def solve():
    return ''.join(['x']*len(input())) solve


def read_int():
    return int(input().strip())


def read_ints():
    return list(map(int, input().strip().split(' ')))


def solve():
    return ''.join(['x']*len(input()))


if __name__ == '__main__':
    print(solve())
