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.
word1 = input()
word2 = input()

l_word1 = len(word1)
l_word2 = len(word2)

n = -1

while True:
    if l_word1 != l_word2:
        print("NO")
        break

    for counter1 in range(l_word1):
        if word1[counter1] != word2[n]:
            print("NO")
            break
        else:
            n -= 1

    if counter1 == l_word1:
        print("Yes")
        break
    else:
        break





