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.
lines = []

while True:
    try:
        _in = input()
    except EOFError:
        break
    if _in == '':
        break
    lines.append(_in)


def reverse(word):
    new_word = ''
    for i in reversed(range(len(word))):
        new_word += word[i]
    return new_word


for i in range(0, len(lines) + 1, 2):
    original = lines[i]
    first_reversed = lines[i + 1]
    real_reversed = reverse(original)
    if real_reversed == first_reversed:
        print('YES')
    else:
        print('NO')
