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.
n = list(input())
c = list(input())
count = len(n)
count_1 = 0
if len(n) == len(c):
    for i in range(count):
        if n[i] == c[count - 1]:
            count_1 += 1
            count -= 1
if count_1 == len(n):
    print('YES')
else:
    print('NO')