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.
x = input()
y = input()
lx = len(x)
ly = len(y)
if lx == ly:
    for i in range(lx):
        if x[i] == y[l - 1 - i]:
            out = 'YES'
        else:
            out = 'NO'
            break
else:
    out = 'NO'
print(out)
