The translation from the Berland language into the Birland language is not an easy task. Those languages are very similar: a berlandish word differs from a birlandish word with the same meaning a little: it is spelled (and pronounced) reversely. For example, a Berlandish word code corresponds to a Birlandish word edoc. However, it's easy to make a mistake during the «translation». Vasya translated word *s* from Berlandish into Birlandish as *t*. Help him: find out if he translated the word correctly.
The first line contains word *s*, the second line contains word *t*. The words consist of lowercase Latin letters. The input data do not consist unnecessary spaces. The words are not empty and their lengths do not exceed 100 symbols.
# will implement with set, dict, list


def input_str():
    arr = input()
    return arr


def input_list():
    return list(input_str())


def print_yn(boolean_exp):
    if boolean_exp:
        print("YES")
    else:
        print("NO")


def final_check(l1, l2):
    if len(l1) == len(l2) and l1 == list(reversed(l2)):
        return True
    else:
        return False


if __name__ == "__main__":
    l1 = input_list()
    l2 = input_list()

    print_yn(final_check(l1, l2))
